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by KE12 reviews
AU: Humanity failed to conquer FTL, having no Eezo in Sol, but they did manage to overcome many other technologies which have allowed them to become the masters of their solar system, but what happens when the Citadel Council stumble across them in the year 3517AD? The Citadel wants their technology, and Humanity wants out of Sol, but can a deal be struck? Heavy focus on FC aspects
Mass Effect - Rated: K+ - English - Sci-Fi - Chapters: 18 - Words: 92,496 - Reviews: 331 - Favs: 1,093 - Follows: 1,594 - Updated: 10/25 - Published: 4/3/2019 - Shepard, Councilor Tevos, Benezia
Mass Effect: Broken Cycles
by Shadowmane2001 reviews
When a Cycle repeats itself enough time. Aberrations appear. Commander Shepard is one such Aberration. But there is another, from an Ancient Race planted so many millions of years ago. A race that did not fall to the Trap of the Reapers. And now the last survivor of their experiment is on a headlong collision with Shepard. A being they called GUYVER. F/Shep 85% Paragon 15% renegade
Crossover - Guyver & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 12,398 - Reviews: 7 - Favs: 30 - Follows: 32 - Updated: 10/25 - Published: 9/9 - OC, D. Anderson, Illusive Man, Shepard
Mass Effect: Galaxy at war
by palik reviews
A Citadel Exploration fleet open a mass relay leading into UEG space and bring the wider galaxy to the UEG and Sangheili with all its injustice and threats. How will the UEG and the Sangheili conduct themselves in this new galaxy they just found. Not the best summary but best i could come up with.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 40,604 - Reviews: 172 - Favs: 452 - Follows: 664 - Updated: 10/24 - Published: 6/18
by mp3.1415player reviews
Technological incompatibility can cause serious issues even at a simple level. When it comes to interstellar travel, those issues can be quite profound...
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 116,838 - Reviews: 618 - Favs: 2,023 - Follows: 2,370 - Updated: 10/23 - Published: 8/18/2019
by CunkToad reviews
Due to a drive core malfunction, a human vessel arrives just in time to save the Council Envoy from the yahg. What happens when humanity enters the galactic stage not as the race that got attacked by the turians for breaking a law they weren't aware of, but as the race that saved a turian platoon from certain death? M for wartime violence, pre ME1 - ME3, no OP humanity.
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 94 - Words: 1,042,308 - Reviews: 738 - Favs: 1,148 - Follows: 1,241 - Updated: 10/23 - Published: 11/27/2016
The Final Frontier : The Last Cycle
by WisdomOfCelestials reviews
AU. Halo/Mass Effect Crossover, Combined Universes. Humanity has not met the council. Considerably buffed Humanity. Buffed Reapers. Several OCs. Being reworked, with the author actually being able to work on it now.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 15,270 - Reviews: 30 - Favs: 151 - Follows: 211 - Updated: 10/23 - Published: 1/1/2018
by Leona-do reviews
When Liara T'soni was kidnapped she had been expecting to be used as a political hostage to blackmail her mother into compliance. She didn't expect to be rescued because of her research and by an alien race that knew more than she did. Liara soon found herself in the center of events that would change the galaxy. They call this influence on the galaxy as Psionic Effect.
Crossover - X-Com & Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 2 - Words: 7,499 - Reviews: 20 - Favs: 113 - Follows: 161 - Updated: 10/20 - Published: 9/29 - Liara T'Soni, Shepard
The Boundary Effect
by Touhoufanatic reviews
2137 When an Alliance exploration ship is fired upon by a Turian cruiser, it shall unleash them upon the galaxy, and the Galaxy is not ready for their power, their abilities, or their lack of common sense! Human/Youkai/Lunarian Alliance. Mass EffectXTouhou Crossover AU. Too many characters to write. Please enjoy and review. update delayed due to writers block.
Crossover - Mass Effect & Touhou Project - Rated: T - English - Sci-Fi/Fantasy - Chapters: 42 - Words: 299,447 - Reviews: 578 - Favs: 1,200 - Follows: 1,435 - Updated: 10/18 - Published: 5/13/2017
Godzilla vs Kong, Battle for survival
by Bears of the west reviews
It's been six years since the battle with the Mutos,Godzilla has been spotted with an interesting change that causes the WOFP to call to action to be rid of this. To fight fire with fire, you need a monster to fight a monster . Read and review.
Godzilla - Rated: T - English - Suspense/Sci-Fi - Chapters: 13 - Words: 12,051 - Reviews: 30 - Favs: 8 - Follows: 12 - Updated: 10/15 - Published: 12/13/2016 - [American Godzilla/Zilla, Godzilla] King Kong
XCOM: Enemy Expanded
by DarthHollow reviews
We defeated the Elders. We took their technology and made it our own to advance into the stars. After so long we surprisingly made allies while unsurprisingly made enemies. Now we find our place and stand firm in this galaxy. Pray to those that believe us weak. For we will not.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 3,011 - Reviews: 11 - Favs: 53 - Follows: 88 - Updated: 10/15 - Published: 8/6
Mass Effect: The Great War
by Mister Smallville reviews
The Citadel Council and the Turian Hierarchy has been at war for a good half of a century. Eager to break the stalemate, The Hierarchy seeks out a new ally in a rising Systems Alliance, bringing the war back to full speed. The Alliance now goes through it's trial by fire, as it emerges from obscurity into the galactic stage. (AU no Krogan Rebellions/First Contact Wars)
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 46 - Words: 141,129 - Reviews: 324 - Favs: 474 - Follows: 672 - Updated: 10/11 - Published: 1/25/2017
Effect of Nations
by Martian Author reviews
In 2148, a small team of American scientists and explorers found the greatest discovery in Human history; alien ruins on Mars. For the next two and a half centuries Human governments and corporations flew out from Earth, carving great empires and propelling Humanity into a new golden age of peace and prosperity. And in 2397, a Japanese explorer answered Humanity's oldest question.
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 47,929 - Reviews: 110 - Favs: 428 - Follows: 602 - Updated: 10/10 - Published: 8/24/2017 - Tali'Zorah, Shepard, Han'Gerrel, Councilor Tevos
Rebirth of Ares
by J26596 reviews
The System Lord Ares crash lands on Earth and takes a new host, sounds simple but no, the host fights back and wins learning everything about the Goa'uld and decides to try and help Earth from out there in the galaxy with a domain at his back, what could go wrong now?
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 34 - Words: 153,149 - Reviews: 478 - Favs: 386 - Follows: 429 - Updated: 10/9 - Published: 5/15
All the Stars
by BlueWay reviews
When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 518,990 - Reviews: 728 - Favs: 1,075 - Follows: 1,352 - Updated: 10/5 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie
The Beginning of the Age of the Raiders
by the stargate time traveller reviews
Earth stands alone during the Earth-Minbari war; allies turn out to be betrayers. No-one will stand with humanity against the genocidal march of the Minbari. On the eve of their destruction, a discovery is made...and humanity is pushed to the limits just to survive, but this is only the beginning. Humanity will look to their own piratical history to survive in the present.
Babylon 5 - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 23,638 - Reviews: 30 - Favs: 65 - Follows: 96 - Updated: 10/1 - Published: 5/1
On the Illusion of Might
by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 23 - Words: 255,540 - Reviews: 1596 - Favs: 2,674 - Follows: 3,468 - Updated: 9/30 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
The Dawn of the Defense Force
by dj33o9er reviews
When a Mass Relay long dormant goes active, a young race's defenses will soon be tested. When aliens eventually come knocking on their doors, they shall stand for all of mankind. For all of humanity, they shall be the first and last line of defense, for this is the dawn of the Earth Defense Force! (Rated M for violence, language, and other such examples found in M rated titles.)
Crossover - Mass Effect & Earth Defense Force - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 3,997 - Reviews: 10 - Favs: 21 - Follows: 36 - Updated: 9/29 - Published: 9/18
by bored peasant reviews
The Citadel Council weren't ready for a species with the power of the saiyans at their back.
Crossover - Mass Effect & Dragon Ball Super - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 79,524 - Reviews: 575 - Favs: 1,350 - Follows: 1,681 - Updated: 9/24 - Published: 8/9/2017 - Son Gohan, Son Goku, Vegeta
Empire of Terra: Humanity's Conquest
by GiselleVonLuzern reviews
Humanity has been space faring for six centuries, and united under an Empire for a century before that. Now, with dozens of colonies, billions of people, and no knowledge of Element Zero... the Citadel has poked a giant amongst the stars. (Massive AU, different human tech base, and a humanity unafraid to stick it to the Citadel's dogmatic rule.)
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 26,099 - Reviews: 93 - Favs: 355 - Follows: 539 - Updated: 9/16 - Published: 5/2 - Admiral Hackett, Shepard, OC
On the Shoulders of Scions
by Karmic Acumen reviews
The Great Dilemma was not about inevitable conflict between organics and synthetics. That was a lie. The truth was far grander and at the same time far closer. The races of the Galaxy had one name for it: Mass Effect. And Shepard was going to have to fix it. As a 10-year-old. Well shit.
Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 8 - Words: 61,762 - Reviews: 78 - Favs: 247 - Follows: 293 - Updated: 9/11 - Published: 3/23/2018 - D. Anderson, Admiral Hackett, Shepard
Mass Effect: The Terran Gambit
by informedterran reviews
AU: A quickly advancing Humanity discovers early on the fate of the ancient Protheans and the threat of the Reapers. Instead of exploring the galaxy with wonder and optimism, the leaders of the Terran Nation prepare their young race to save themselves. When they finally make First Contact, they begin their ultimate gambit; To ready all the galaxy to fight the Reapers!
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 40 - Words: 511,902 - Reviews: 326 - Favs: 1,088 - Follows: 1,262 - Updated: 9/6 - Published: 4/16/2016 - OC
It Started At Shanxi
by SpaceTurtleOX reviews
One hundred years after the end of the Human-Covenant War an ill-fated UNSC expedition opens Relay 314, revealing a civilization unprepared for their arrival, and relics from a terrible past.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 73,507 - Reviews: 479 - Favs: 1,369 - Follows: 2,111 - Updated: 9/6 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
by Jago-Dakari reviews
A meeting between a yautja huntress and a human marine turned vengefull slayer will shake the very foundation of both races in this story of adventure, love and loss.
Aliens/Predator - Rated: M - English - Sci-Fi/Adventure - Chapters: 42 - Words: 494,265 - Reviews: 367 - Favs: 571 - Follows: 509 - Updated: 9/4 - Published: 11/30/2011 - Human, Predator/Yautja
Mass Effect: The Iron Heart of Man
by Apollonir reviews
[AU] The Illusive Man said that salvation comes with a cost. When corruption seeps into the galaxy, when centuries of status quo suddenly breaks in a mere decade, when blood's spilled among the stars like never before, when extinction looms over civilization, when morality is merely a shade... salvation can only come with sacrifice. [AU First Contact War & Reaper War; GRAPHIC]
Mass Effect - Rated: M - English - Sci-Fi/Suspense - Chapters: 33 - Words: 369,679 - Reviews: 835 - Favs: 1,736 - Follows: 2,125 - Updated: 8/30 - Published: 8/23/2016 - Admiral Hackett, Illusive Man, Shepard, OC
Command effect: Rise of the three powers
by aris1606 reviews
Anyone wondering what would happen after the events of the Uprising? There are a lot of possibilities. Time machines, Yuriko Omega on the loose, desolators, giga fortresses and a lot of other stuff. It's gonna be a crazy ride.
Crossover - Mass Effect & Command & Conquer - Rated: M - English - Adventure/Sci-Fi - Chapters: 30 - Words: 97,247 - Reviews: 71 - Favs: 107 - Follows: 163 - Updated: 8/28 - Published: 10/16/2019 - Shepard
Place of Our Legacy
by firstprime1230 reviews
Earth has been overrun by the forces of the Ori. Beaten, demoralized and on the run in the Ancient city of Atlantis the survivors of Earth make a desperate gamble to save what little they have left. Arriving in a galaxy so different from their own, can they to uphold the legacy left to them by the races that came before? And save a galaxy doomed to a suffer a similar fate?
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 111,522 - Reviews: 211 - Favs: 512 - Follows: 754 - Updated: 8/26 - Published: 4/30
The Ghoul Effect
by storyseeker7 reviews
Humans and Ghouls two species who by natures design should have destroyed one or the other in bloody war of survive. But the actions of a few mange prevent such an event from occurring, and now two species work together for a better future. How will they react to a galaxy for of different races, and how will the galaxy react to the unique relationship between these two races?
Crossover - Mass Effect & Tokyo Ghoul/東京喰種トーキョーグール - Rated: M - English - Sci-Fi - Chapters: 20 - Words: 154,033 - Reviews: 167 - Favs: 418 - Follows: 510 - Updated: 8/21 - Published: 1/2/2019 - J. Garson
Dawn of Titans
by F13D reviews
There is nothing fair, just, or honorable about war. There is only winning and losing, the living and the dead. Humanity has learned this truth and has ascended to the stars. What effect will this have on the rest of the galaxy, one that has experienced millennia of peace? Will it be able to maintain the peace or will it be ushered into a new age of war? Let the end begin. A/U
Crossover - Mass Effect & EndWar - Rated: M - English - Sci-Fi/Adventure - Chapters: 36 - Words: 374,048 - Reviews: 703 - Favs: 980 - Follows: 1,206 - Updated: 8/21 - Published: 7/15/2015 - D. Anderson, Admiral Hackett, OC
A Left Turn at Albuquerque
by andrewjameswilliams reviews
When a weapons test goes horribly wrong the SDF-3 and a group of Robotech warships are sent hurtling into the Star Wars galaxy and a confrontation with the forces of the sinister Galactic Empire. *Chapter Nine new version*
Crossover - Star Wars & Robotech/Macross - Rated: T - English - Chapters: 13 - Words: 88,448 - Reviews: 219 - Favs: 297 - Follows: 333 - Updated: 8/18 - Published: 2/26/2017 - Leia O., M. Mothma, Lisa/Misa, Rick/Hikaru
The Fourth Council Race
by Knight Vigilant Koren reviews
A few minor and realistic changes in the decisions made by the leaders of humanity drastically altered the path of Citadel Space and the Reaper War. This is the story of caution and planning over recklessness, the path of the juggernaut over the glass cannon. This is the story of humanity as it should have been. A power worthy of its Council seat, and one the Reapers can't ignore.
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 28 - Words: 190,008 - Reviews: 1284 - Favs: 2,141 - Follows: 2,794 - Updated: 8/17 - Published: 9/23/2017 - Garrus V., Kaidan A., Shepard, Councilor Irissa
by Fade Maybe reviews
A UNSC cruiser activates a dormant Relay, forcing the politically divided UNSC into a new war against the Reaper menace. This time, Humanity will not stand alone. Now surrounded by diplomatic adversaries and renegade rivals and contenders, Humanity will face a new set of challenges unlike anything it has seen before. The Reclamation has already begun, and we are hopless to stop it.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 45 - Words: 410,394 - Reviews: 1356 - Favs: 1,444 - Follows: 1,813 - Updated: 8/9 - Published: 3/13/2013
Mass Effect: Children of the Moons
by OmegaEntertainment reviews
"Humanity always knew, when we looked to the stars, that there could be an apex predator out there. However, while we knew that those predators could find us at the heart of our civilization, we could have never predicted that they would offer us Preservation." Rated M for Necromorphs and Brethren Moons, no other reason is needed for the rating.
Crossover - Mass Effect & Dead Space - Rated: M - English - Sci-Fi/Horror - Chapters: 13 - Words: 49,281 - Reviews: 111 - Favs: 395 - Follows: 488 - Updated: 8/7 - Published: 12/11/2017 - Harbinger, Shepard, Isaac C., OC
by creamofwheat2311 reviews
After discovering an ancient artifact, the UNSC's most advanced warship and a Sangheili Assault Carrier are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 51 - Words: 444,043 - Reviews: 3860 - Favs: 4,720 - Follows: 5,588 - Updated: 8/6 - Published: 10/9/2013 - Master Chief/John-117, Arbiter, T. Lasky, Shepard
A Change of Fate
by kaln7 reviews
The Colonials search for the Thirteenth tribe after the fall of their colonies maybe at an end, when they make contact with the Systems Alliance, but will Earth lend them a hand or will the Cylons destroy them all.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 103,222 - Reviews: 193 - Favs: 307 - Follows: 458 - Updated: 7/30 - Published: 4/8/2017
by locolycan777 reviews
Over a hundred years before the cylon war a secret group of free thinkers colonize another system. Over time more races with nothing to lose join them and form a mighty Alliance to protect there home. When the very colonies they fled and a citadel council learn of them they will have to fight to protect their utopia. Elements from Defiance and other sci-fi used.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 4 - Words: 14,452 - Reviews: 23 - Favs: 68 - Follows: 94 - Updated: 7/24 - Published: 4/12
Exodus of Man - Hades' Chest
by H Max Marius reviews
The media called them pirates. The Government ordered their eradication. The Colonial Fleet hunted them for decades. Then the Cylons came back. They call themselves the Last Colony of Man... ...and they have a plan!
Battlestar Galactica: 2003 - Rated: T - English - Drama/Sci-Fi - Chapters: 9 - Words: 34,502 - Reviews: 65 - Favs: 89 - Follows: 99 - Updated: 7/11 - Published: 12/4/2018
by stormwolf3710 reviews
What if something was found on the moon and a entire universe was created to hide its secrets? What if Earth used those designs to create their own navy? And what if it was the Asari who first made contact? A idea I've been sitting on for some time.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 56,541 - Reviews: 160 - Favs: 879 - Follows: 1,233 - Updated: 6/28 - Published: 7/22/2018
Valor of the Suns
by Walker-98 reviews
As President Clark tightens his grip on the Earth Alliance worlds, a group of Earthforce officers rebel and steal a top-secret starship. Barely understanding the ship and its capabilities, the unlikely crew will soon be caught up in events and forces that will reshape the entire galaxy.
Babylon 5 - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 45,617 - Reviews: 17 - Favs: 43 - Follows: 56 - Updated: 6/25 - Published: 2/16/2016 - OC
Buried in the sands of Time
by Syphon01 reviews
a story about the discovery of an ancient factory ship abandoned before they abandoned the Milky way galaxy the first time
Stargate - Rated: M - English - Chapters: 1 - Words: 7,411 - Reviews: 7 - Favs: 25 - Follows: 38 - Updated: 6/12 - Published: 5/22
Mass Effect: Skynet
by Wanderer101 reviews
To combat a brutal communist regime emerging from the ashes of the Soviet Union the United States builds an AI to give them an edge. Little do they know this edge may be enough to help them defeat an ancient evil.
Crossover - Terminator & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 8,978 - Reviews: 77 - Favs: 371 - Follows: 530 - Updated: 6/6 - Published: 3/9
The False War
by DerelictTyrant reviews
Hundreds of years can make a difference on the galactic scene; a violation of Council Law too. Ideals and agendas clash, as a different mankind and the galaxy meet each other. Old alliances are put to test and new pacts are forged, while the definitions of friend and foe become blurred. Alternate Universe.
Mass Effect - Rated: M - English - Sci-Fi/Suspense - Chapters: 27 - Words: 195,884 - Reviews: 111 - Favs: 222 - Follows: 276 - Updated: 6/5 - Published: 1/28/2017 - Admiral Hackett, Illusive Man, Councilor Irissa, OC
by fanfictionfanaticX reviews
A small change in the past by SG-1 may have unexpected side effects for the rest of the galaxy.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 18 - Words: 359,790 - Reviews: 419 - Favs: 531 - Follows: 752 - Updated: 5/28 - Published: 6/17/2018
Mass Effect: Trailblazer
by TallYapflip reviews
Humanity, left to its own devices for centuries, comes into contact with the Citadel Council. A misunderstanding leads to hostile first contact, and the UNSC is drawn into war with the Council shortly after the Insurrection's height. The Council finds itself face-to-face with a species that has broken the shackles of Mass Effect Technology. The Era of Humanity has only just begun.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 60,560 - Reviews: 582 - Favs: 1,933 - Follows: 2,597 - Updated: 5/25 - Published: 7/14/2017 - Master Chief/John-117, J. Keyes, Miranda L., Shepard
by Officer Durandal reviews
When the UNSC Infinity suddenly finds itself in foreign territory, Captain Lasky is faced with a Challenge no Naval Captain wishes to come across: Be a diplomat.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 11,734 - Reviews: 46 - Favs: 127 - Follows: 209 - Updated: 5/23 - Published: 1/21/2019 - S. Palmer, T. Lasky, Garrus V., Shepard
Belli Dura Despicio: I Despise the Hard Knocks of War
by grimreaper's lost soul reviews
Deployed to patrol the Turian Fringe Systems the HNV Invictus is badly damaged and is forced to blind-jump with a damaged FTL drive, it's crew survives the ordeal, landing on Humanities doorstep the crew is rescued and the Invictus is scuttled, Humanity learning of the Hierarchy moves to put its best foot forward by bringing their wayward sons and daughters home. Alternate FC Fic.
Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 16 - Words: 53,702 - Reviews: 118 - Favs: 357 - Follows: 481 - Updated: 5/11 - Published: 7/3/2019
by ecarden reviews
The obligatory Mass Effect-XCOM crossover, just set a little earlier than most. The Migrant Fleet is looking for new worlds, new tech, new allies. Humanity would very much like to not be exterminated by aliens from beyond the stars. SYNERGY!
Crossover - X-Com & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 18 - Words: 126,651 - Reviews: 135 - Favs: 384 - Follows: 538 - Updated: 4/23 - Published: 6/15/2017 - U. Wrex, Tali'Zorah, Joker, Shepard
Breaking the Cycle - breaking control
by Andybiotics reviews
The cycle existed to bring order and control to the chaos that is organic life. This control has remained unbroken no matter what life had evolved over the course of eons. However something has now emerged within the Galaxy. A power beyond the limits imposed by the cycle. Something its creators labeled - Out of Control.
Crossover - Guyver & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 3,499 - Reviews: 10 - Favs: 25 - Follows: 36 - Published: 4/19 - Aptom, Shepard
The Cronus Expeditionary Fleet
by Cronus Actual reviews
I have always asked myself why the Colonials did not plan better. This is a mostly AU look at what would happen if the Colonial Admiralty had a plan B. An escape plan for as many of humanity as they could save. My first Fanfiction!
Battlestar Galactica: 2003 - Rated: K - English - Sci-Fi - Chapters: 10 - Words: 35,005 - Reviews: 30 - Favs: 61 - Follows: 67 - Updated: 4/18 - Published: 3/5
The Terran Transformation
by FrogRay reviews
One change in the 21st century set Humanity on a different path. On Mars, more was discovered than just the key to the stars. Tales of extinction and an unbroken cycle told of a dark future, but the Reapers might be the ones in for a surprise. AU, not using Mass Effect: Andromeda, and the Reapers get a bit stronger.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 11 - Words: 47,147 - Reviews: 110 - Favs: 574 - Follows: 798 - Updated: 4/2 - Published: 9/23/2019
Mass effect rise of the giants
by micelzod reviews
The systems Alliance has lied to the US, European Federation and Russia that there is life out in space hoping to give the Citadel Council a good impression but when a colonization fleet encounters a already colonized planet then the secrets out in a giant way.
Crossover - Mass Effect & EndWar - Rated: M - English - Adventure/Hurt/Comfort - Chapters: 10 - Words: 48,877 - Reviews: 49 - Favs: 91 - Follows: 105 - Updated: 3/28 - Published: 7/26/2019
Rain Of Iron
by Wirbelwind2017 reviews
Several months after a devastating war that left much of Earth destroyed, the Earth Defense Force faces new challenges when a pirate vessel breaks Citadel law and opens several Mass Relays. HFY?
Crossover - Mass Effect & Earth Defense Force - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 13,837 - Reviews: 22 - Favs: 91 - Follows: 138 - Updated: 3/21 - Published: 9/6/2019 - U. Wrex, Aria T'Loak, Councilor Tevos, Councilor Sparatus
The Legacy of Wrath
by gods-own reviews
The ghosts of the past are never truly gone and when an enemy, long forgotten, rises from the shadows it will take the legacy of a bygone age to stop them. all material contained within is the property of Bioware and CyberConnect2. PLEASE READ: CHAPTER 19 IS UP!
Crossover - Mass Effect & Asura's Wrath - Rated: M - English - Sci-Fi/Adventure - Chapters: 20 - Words: 138,029 - Reviews: 185 - Favs: 529 - Follows: 574 - Updated: 3/5 - Published: 12/21/2015 - J. Garson, Liara T'Soni, Jack, Asura
War, Peace, and other Galactic Customs
by The Almighty Afroduck reviews
After a long, terrible war, the Federation of Sovereign Empires forms as the product of the alliance created early in the Great War between the Covenant Separatists and the UNSC. Time passes as they progress greatly, eventually discovering the existence of other galactic governments. The events that will follow will change the course of the galaxy in more ways than one. PART- 3
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 35 - Words: 400,974 - Reviews: 693 - Favs: 1,149 - Follows: 1,422 - Updated: 3/4 - Published: 3/1/2014
The Final Circle
by Sufficient Velocity reviews
This is a Babylon 5 centered tale. It explores a BSG style exodus due to the loss of the Earth Minbari war. It becomes a crossover with nBSG as of Interlude 1 before Part 2 begins. If your desire is only to read a Battlestar Galactica fic, feel free to start there. There may be changes to the timeline for plot purposes, but I am trying to build on canon not alter it, if I can.
Crossover - Babylon 5 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi - Chapters: 28 - Words: 324,192 - Reviews: 71 - Favs: 134 - Follows: 152 - Updated: 2/16 - Published: 7/13/2018
An Infinite Chance
by OperatorMazzi reviews
After a long and bloody civil war, The United Earth Colonial Federation licks its wounds and expands its borders as they settle across the New Frontier. but as they expand, the endless cycle of hardships that mankind has brought upon themselves will be put to the ultimate game of Survival. All in the name of chance.
Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 6 - Words: 28,367 - Reviews: 31 - Favs: 179 - Follows: 265 - Updated: 2/16 - Published: 11/25/2016 - J. Garson, Admiral Hackett, Illusive Man, OC
The Horizons Beyond
by JJ2161 reviews
When two worlds with predefined mindsets, knowledge, and ideals have to throw all of that out the window after contacting a new player. Humanity. (Babylon 5/Mass Effect AU crossover with a Star Trek-based Humanity and Stargate-based Precursors)
Crossover - Babylon 5 & Mass Effect - Rated: T - English - Chapters: 22 - Words: 142,782 - Reviews: 228 - Favs: 452 - Follows: 566 - Updated: 2/3 - Published: 9/29/2017
Mass Effect: Titanfall Rise of the United Species Alliance Story 1:
by StarBorn Michael reviews
In the year 2257, humanity thought they were alone in the Galaxy. Until the IMC open the way forward. Join us as we see Humanity First Contact with the other Species of the Galaxy and see the Rise of a Government the likes the Galaxy has never seen before and the return of old Darkness and new factions alike to come. In RISE of the United Species Alliance Story 1 First Contact War.
Crossover - Mass Effect & Titanfall - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 11,272 - Reviews: 29 - Favs: 163 - Follows: 251 - Updated: 1/15 - Published: 1/30/2017 - Admiral Hackett, Hannah S., OC, Sarah B.
And the Meek Shall Inherit
by ArcturusWolf reviews
Humanity reached for the stars earlier than expected, their colonies reaching out far and wide before the turn of the 22nd century. Yet they had not encountered another alien species; that is, until an exploration ship enters a miscalibrated mass relay and crash-lands in the homeworld of an alien species. How would humanity evolve when welcomed with kindness instead of violence?
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 27,466 - Reviews: 99 - Favs: 262 - Follows: 369 - Updated: 1/4 - Published: 8/24/2019
Book One: Dawn of a New Age
by DragonheartODST reviews
Humanity had been expanding across the stars for over 5 centuries in relative peace. But an alien alliance known as the Covenant wishes to destroy humanity entirely. Now threatened with extinction, can the fate of just one battle-scared survivor change the events of the war and those participating in it? Multi-crossover with Halo, Mass Effect, and a little bit of StarCraft. Hiatus
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 14 - Words: 131,491 - Reviews: 291 - Favs: 328 - Follows: 379 - Updated: 1/3 - Published: 5/19/2016
Are We Alone
by JMB Fictional Writing reviews
What if gods were real? Many have wondered what would happen if these all-powerful beings were proven to exist, and what would occur if they ever stepped free from the ether. What would those who had once worshiped them do? How would the other races of the galaxy react, knowing that these gods existed? What changes in fate would occur if one of these gods appeared on Elysium?
Crossover - Bleach & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 19 - Words: 200,816 - Reviews: 1341 - Favs: 2,590 - Follows: 3,047 - Updated: 1/3 - Published: 7/6/2015 - Ichigo K., K. Urahara, J. Garson, Tali'Zorah
by Iron Warriors reviews
When we started to expand past the Orin Arm of the Milkyway, we didn't know what to expect. Once we were out there though, things changed big time. For those brief 30 years we were the top dogs of the galaxy in all powers but like always when humanity reaches a higher seat of power, something always comes to make us fall... This time however the fall will cost our entire race.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 25 - Words: 85,332 - Reviews: 255 - Favs: 525 - Follows: 750 - Updated: 1/2 - Published: 12/11/2017 - OC
A House Divided Amongst Itself
by ThePilotArchangel reviews
First Contact AU! The United Confederacy explores the Orion arm of the milky way galaxy, unaware of the rest of galactic civilization. When mankind meets its first aliens, how will things unfold? How will mankind react? (Undergoing MASSIVE Rewrite)
Mass Effect - Rated: T - English - Chapters: 32 - Words: 120,136 - Reviews: 362 - Favs: 475 - Follows: 672 - Updated: 12/31/2019 - Published: 4/17/2019 - Hannah S., Rael'Zorah, OC
Gundam SEED: Mercenary Effect
by DragonKnightRyu reviews
It's been twelve years since Humanity united, and now their gaze turns towards the stars and what lay beyond, the time has come. Humanity is about to take the stage.
Crossover - Gundam Seed & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 85,047 - Reviews: 126 - Favs: 461 - Follows: 524 - Updated: 12/28/2019 - Published: 10/25/2016 - Kira Y., OC, Shepard
Contact at the Citadel
by wilkins75 reviews
Sequel to Contact of Kobol and Contact of Races. Earth and other worlds are united in the Tau'ri Alliance, with the advance technology from the Ancients and the Asgard they are the most advanced culture in the Galaxy. Now they must travel to a distant galaxy to finish the mission of the Destiny only to contact the Citadel Council and the Reapers. (Stargate Sg1/Mass Effect)
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 21 - Words: 177,578 - Reviews: 1147 - Favs: 1,262 - Follows: 1,598 - Updated: 11/18/2019 - Published: 4/23/2018
by Seraphin2011 reviews
Book III: The Ori gone, Aschen imprisoned, Wraith changed and pacified, yet the Alliance is threatened once more. The Vargas are coming and no one knows how they are going to survive an enemy that spans throughout the known universe and had done so for billions of years. By closing the anomalies, they have postponed the invasion by more than two years, but will that be enough?
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 237,419 - Reviews: 299 - Favs: 384 - Follows: 445 - Updated: 11/8/2019 - Published: 1/12/2017 - S. Carter, J. O'Neill
by balckwatch1 reviews
The United states of Earth and her colonies have spread across the stars, unknown to the rest of the Galaxy Humanity stands ready for its manifest Destiny.
Mass Effect - Rated: M - English - Chapters: 19 - Words: 62,221 - Reviews: 93 - Favs: 159 - Follows: 218 - Updated: 11/7/2019 - Published: 7/24/2019 - Admiral Hackett, Shepard
Exodus Into Fire
by keita52 reviews
When the Battlestar Galactica, guided by Starbuck, makes the jump towards Earth, they find a planet encircled by giant black ships and a woman calling herself Commander Shepard telling them to leave before the Reapers attack them. With Earth not the safe haven they'd hoped for, the Colonial Fleet and their Cylon allies struggle to make a place for themselves in this new universe.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 16 - Words: 66,248 - Reviews: 106 - Favs: 258 - Follows: 393 - Updated: 11/7/2019 - Published: 11/12/2014 - K. Thrace/Starbuck, J. Garson, Ashley W.
by werecat1 reviews
The fight with the covenant seems hopeless, manpower is weak against the unrelenting force of alien technology. Master Chief and the other Spartans seem to be the only hope, until a mysterious alien ship intercepts a covenant battleship and destroys it before it can attack a fleet of UNSC ships heading toward another colony.
Crossover - Aliens/Predator & Halo - Rated: M - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 6,088 - Reviews: 14 - Favs: 30 - Follows: 37 - Updated: 11/2/2019 - Published: 9/20/2019
Stargate Atlantis: The Robotech War
by Strikefreedom10 reviews
Two universe, completely independent from one another, will collide. How will the Atlantis Expedition thrive with one of the greatest warships and some of the bravest and greatest soldiers from another Earth aiding them with their conflict with the Wraith and other threats? Who knows, but it is going to be an amazing ride regardless. Welcome, to Stargate Atlantis: The Robotech War.
Crossover - Robotech/Macross & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 27 - Words: 237,618 - Reviews: 257 - Favs: 157 - Follows: 182 - Updated: 10/31/2019 - Published: 10/4/2018 - Lisa/Misa, Rick/Hikaru, Gloval, John S.
X-COM Ad Infinitum
by Xphonias reviews
X-Com, Mass Effect Crossover, Space Engineers elements. As Humanity pushes off the Ethereal threat a cycle continues, while a vast, unknown Galactic Civilization lives right upon its borders, bringing with it possible friends, or foes.
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 6,725 - Reviews: 14 - Favs: 92 - Follows: 140 - Updated: 10/25/2019 - Published: 3/25/2018
Mass Effect: The Transformation Effect
by ren1234 reviews
A race that had evolved from war and metal, how would the council deal with an alliance of two races, one which is notorious for its adaptability and unpredictability and the other that goes against everything that they believed in for such a long time?
Crossover - Mass Effect & Transformers - Rated: T - English - Chapters: 4 - Words: 7,444 - Reviews: 24 - Favs: 129 - Follows: 194 - Updated: 10/20/2019 - Published: 10/17/2019
Of Avatars and Harbingers
by The Shadowscythe reviews
Humanity, a species that has been invaded twice by the Ethereals, their thrall species and occupied by the ADVENT coalition have finally left the Sol system and expanded into the stars. They knew the Ethereals feared something bigger & badder than themselves. They knew the Protheans has been wiped out by the same threat. The time of the cycle has arrived and extinction awaits all.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 17 - Words: 73,632 - Reviews: 37 - Favs: 156 - Follows: 216 - Updated: 10/16/2019 - Published: 11/18/2018 - OC, J. Garson, Shepard, OC
A Different Road Taken
by Redrover117 reviews
In 1928 an alien artefact was discovered in Egypt and activated for the first time a few years later. In one reality Doctor Littlefield stepped through and was stranded on the planet Heliopolis for decades. In this reality he arrived on another planet entirely, one that house an Ancient Repository.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 54,169 - Reviews: 249 - Favs: 367 - Follows: 464 - Updated: 10/11/2019 - Published: 9/23/2018 - Complete
United We Stand, Divided We Fall
by crappyfriend reviews
Humanity has long thought of themselves as the only intelligent species left in the galaxy. With the only knowledge that we have of aliens existing being the ruins and clues that they left behind. Today humanity is threatened by an enemy that met our wish of coexistence with death and destruction. We will have to unite if we expect to defeat this threat or hope will soon be lost.
Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 5 - Words: 7,028 - Reviews: 10 - Favs: 45 - Follows: 69 - Updated: 10/8/2019 - Published: 8/28/2019 - Rael'Zorah
Quest of the Furlings - Rewrite
by AerchAngel reviews
Furlings left the Milky Way galaxy in a hurry and no one knew where they went, except for a few. SGC always looked at the empty seat at Heliopolis and wonder where they went. Now with the power to go somewhere, they embark on a journey to find out what happened to them or if they are still around. This is a more comprehensive Re-write - Enjoy
Crossover - Babylon 5 & Stargate: SG-1 - Rated: T - English - Sci-Fi/Suspense - Chapters: 18 - Words: 125,695 - Reviews: 78 - Favs: 101 - Follows: 152 - Updated: 9/28/2019 - Published: 12/20/2017
Halo: Second Contact
by Helezhelm reviews
What if Halo universe collides with Mass Effect universe! How would System Alliance among Council Citadel races react to another human race in other galaxy? We only will find out in upcoming fanfiction!
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 5,934 - Reviews: 66 - Favs: 212 - Follows: 256 - Updated: 9/25/2019 - Published: 4/29/2015
The UNSC and the Citadel Council
by Lord Okkirke reviews
What if it had not been the Systems Alliance that made made first contact with the Citadel Species but a UNSC that never encountered the Covenant? The Story begins in 2607 CE(Mass Effect timeline is adjusted by 450 years to line up properly) with the First Contact War.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 1 - Words: 6,176 - Reviews: 38 - Favs: 170 - Follows: 275 - Published: 9/14/2019
For Earth and All Her Colonies
by GADPELLAEON reviews
Post Human-Covenant War AU. After the Great War, all the UNSC wants to do is rebuild and live in the peace. A peace that so many died for. What happens when they learn that no matter what, war will always find them. Chapters Updated - Chapter 11 uploaded (07/08/2019) Any criticism and/or tips welcome.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 12 - Words: 80,225 - Reviews: 446 - Favs: 1,222 - Follows: 1,777 - Updated: 9/13/2019 - Published: 12/27/2018 - Master Chief/John-117, Arbiter, J. Garson, Councilor Tevos
Two Steps Towards Oblivion
by Nazwin43 reviews
When signals of an unknown race reach Citadel Space, the Council leads an effort to gain enough information upon the newcomers to the galactic community. However, after much deliberation among themselves, as well as a powerful AI, they learn the fate of the galaxy is at stake, before opting to unleash a preemptive strike. Unknowingly, this was the first step to their destruction..
Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 1 - Words: 1,638 - Reviews: 8 - Favs: 22 - Follows: 30 - Published: 9/11/2019
by CuriousNumber5 reviews
Dha-viath, raised amongst Yautja from childhood, encounters humans for the first time in nearly two decades. Driven by the urge to hunt she faces a choice and its subsequent consequences. Her life changes irrevocably as perceptions and prejudices on all sides must change. The lines between enemy and ally blur as Dha-viath evaluates her misconceptions.
Aliens/Predator - Rated: M - English - Sci-Fi/Drama - Chapters: 22 - Words: 66,017 - Reviews: 21 - Favs: 27 - Follows: 29 - Updated: 8/30/2019 - Published: 12/11/2016 - OC
by GreyWolfKnight reviews
What happens when a BSG nerd gets Self-Inserted into the body of a battlestar commander on the eve of the 2nd Cylon War? Stations of canon get broken and new twists emerge as the human race tried desperately to survive the Cylon onslaught.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Supernatural - Chapters: 22 - Words: 37,531 - Reviews: 79 - Favs: 218 - Follows: 264 - Updated: 8/28/2019 - Published: 1/20/2019 - Complete
by Strikefreedom10 reviews
Two different humanity's. Both pushed around by aliens for far too long. Together, they shall show this third universe that humanity is not to be underestimated.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 26,768 - Reviews: 92 - Favs: 216 - Follows: 267 - Updated: 8/17/2019 - Published: 4/1/2019 - S. Carter, J. O'Neill, Master Chief/John-117, T. Hood - Complete
Issues of the Human Imagination
by noctisxsol reviews
Humanity's greatest asset has always been its creativity and imagination. They make entirely separate worlds filled with seemingly impossible objects and items, for seemingly no practical purpose at all. Humans, however, also have a bad habit of making those fantasies into realities. Every. Single. One of them. Neither sanity nor reality will survive.
Mass Effect - Rated: T - English - Parody/Humor - Chapters: 3 - Words: 12,782 - Reviews: 23 - Favs: 64 - Follows: 94 - Updated: 8/10/2019 - Published: 1/9/2019 - J. Garson, Shepard
No Gods, No Kings, No Reapers Terra Athernum
by Icarus636 reviews
The dream of Rapture never became a nightmare, under the banner of the UN and Rapture humanity united as one. Now as the Human Commonwealth stands as the only superpower matching The Council in strength and technology, an eternal enemy awakens, but mankind shall not go quietly into the night. HFY fanfic, different humanity, Paragon Sheppard.
Crossover - Mass Effect & BioShock - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 117,979 - Reviews: 153 - Favs: 422 - Follows: 509 - Updated: 8/6/2019 - Published: 7/18/2018 - [Shepard, Tali'Zorah] Eleanor L., Elizabeth
Stargate: Golden Dawn
by Amann0407 reviews
There is a mysterious race on the edge of the Milky Way Galaxy. But who are they and what do they want? Rewritten from the original Golden Dawn. Will keep reworking the story as I go along.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Drama - Chapters: 26 - Words: 85,123 - Reviews: 154 - Favs: 217 - Follows: 260 - Updated: 7/25/2019 - Published: 4/3/2012 - D. Jackson, J. O'Neill
by Gojiratheking106 reviews
After the Earth is conquered by an extraterrestrial threat, humanity must fight back with the help of the remaining Earth kaiju.
Godzilla - Rated: T - English - Sci-Fi - Chapters: 12 - Words: 9,018 - Reviews: 3 - Favs: 14 - Follows: 13 - Updated: 7/24/2019 - Published: 6/6/2018
by atomicsub927 reviews
Humanity has reached the stars and is now a powerful coalition. Fears over the widespread technology found in the prothean ruins on mars mean that humanity embraces a different form of technology and their fleet is one of the most powerful in the galaxy. Will be replaced by a different story
Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 10 - Words: 27,179 - Reviews: 66 - Favs: 99 - Follows: 129 - Updated: 7/14/2019 - Published: 3/22/2018 - [Tali'Zorah, Shepard] [Garrus V., Kasumi G.]
The Great Terminus War
by mad0slayer reviews
(Rewrite to fix earlier issues will start to post in new year)
Mass Effect - Rated: M - English - Chapters: 9 - Words: 33,386 - Reviews: 50 - Favs: 113 - Follows: 147 - Updated: 7/9/2019 - Published: 7/31/2018
The Reclaimer Effect
by Thorthemighty321 reviews
It's the eve of the centennial anniversary of the beginning of the Human-Covenant War. A mere twenty years after the discovery of Prothean Ruins on Mars. A simple case of poor communication leads to a brief but violent conflict erupting and leads to the United Earth Government and it's military arm the UNSCDF coming onto the Galactic Stage of politics, mysteries, and adventures.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 17 - Words: 174,265 - Reviews: 637 - Favs: 1,067 - Follows: 1,532 - Updated: 6/27/2019 - Published: 2/28/2018
Mass Effect: The New Journey
by Arashi the Solar Phoenix reviews
During a Joint Deployment, the UNSC Infinity and Her Sangheili allies are suddenly thrown into a new Galaxy, and end up near Charon before the Systems Alliance discovers the Charon Relay. Alliances are forged and how will the galaxy react to an aggressive humanity that not only doesn't use Mass Effect technology, but will not let anyone stand in their way of expansion? AU PreME1
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 190,674 - Reviews: 1358 - Favs: 2,327 - Follows: 2,840 - Updated: 6/11/2019 - Published: 1/26/2014
by Saberpoint reviews
An immortal human leaves Earth for shores unknown in the vastness of the universe. After thousands of years in space he stumbles upon a fascinating discovery. EXTRATERRESTRIALS! Namely a species called the Yautja. Who knows what else he will discover while in their company. See Profile for Detailed Summary.
Aliens/Predator - Rated: M - English - Humor/Adventure - Chapters: 18 - Words: 118,066 - Reviews: 180 - Favs: 412 - Follows: 447 - Updated: 6/1/2019 - Published: 9/23/2014 - Human, Predator/Yautja, OC
Always Comes Back to Haunt Us
by dragonlots reviews
The past is a dangerous thing and so are the secrets that were kept to 'protect' Earth during Pres. Clark's dictatorship. The crew of the Excalibur stumble over one and Sheridan has to deal with the fallout. B5,Crusade, SGA, SG1, Jonny Quest, DS, Kindred, MacGyver 2016 and BSG 1978. Prequel story: Say Goodbye to Yesterday.
Crossover - Babylon 5 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Drama - Chapters: 24 - Words: 33,440 - Reviews: 38 - Favs: 43 - Follows: 68 - Updated: 5/28/2019 - Published: 4/7/2009 - J. Sheridan, Delenn, M. Garibaldi, John S.
Reclaiming the Throne
by GuiltyKingOumaShu reviews
5 years has it been since Shu had fallen from his throne and lost his crown. But now, just as he is about to accept his crushing defeat and live with the bitter taste of loss, he makes the sudden realization that only death can end a king's reign. He may be a fallen one, but a king he still is nonetheless. He will reclaim his throne and reunite with his queen or die trying.
Guilty Crown/ギルティクラウン - Rated: T - English - Suspense/Romance - Chapters: 39 - Words: 522,745 - Reviews: 387 - Favs: 431 - Follows: 429 - Updated: 5/26/2019 - Published: 1/11/2013 - [Shu O., Inori Y.]
HALO Mass convergence
by SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 22 - Words: 75,292 - Reviews: 278 - Favs: 570 - Follows: 743 - Updated: 5/23/2019 - Published: 9/18/2016 - Master Chief/John-117, Cortana, J. Garson, Tali'Zorah
Mass Effect: War of Empires
by Ranger9000 reviews
In a universe where a scheduling error results in a drastically different humanity then canon. Multiple human empires and spaceborne states square off against eachother and the universe at large in equal parts. How is the universe effected by a divided humanity? As lines are drawn, and war always is looming on the horizon.
Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 12 - Words: 51,728 - Reviews: 73 - Favs: 195 - Follows: 284 - Updated: 5/12/2019 - Published: 2/17/2017 - J. Garson, U. Wrex, Shepard
To change fate
by fanfictionfanaticX reviews
Fate is a weird thing. By trying to stop it or change it, you discover that it has all already been written. Or has it? This is a Stargate and BSG 2003 crossover.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 28 - Words: 395,824 - Reviews: 339 - Favs: 367 - Follows: 476 - Updated: 5/10/2019 - Published: 12/22/2016
A New Hunt: Death and Rebirth
by Luna Silvereyes reviews
Born into the dying stages of a race of winged humanoids, Avocet has been cast out of her clan with deformed wings. Stalked by humans and black demons, she makes a desperate deal with a devil in order to live. Assimilating into his clan, Avocet struggles to hold onto herself as she begins to grow in their ways and come to terms with the grim fate of the world of her birth.
Aliens/Predator - Rated: T - English - Spiritual/Drama - Chapters: 30 - Words: 198,808 - Reviews: 115 - Favs: 144 - Follows: 150 - Updated: 5/5/2019 - Published: 8/4/2016 - Human, Predator/Yautja, Alien/Xenomorph, OC
The Benefits of Happenchance
by Syphon01 reviews
what if Skynet's base code was never run and sat stored in a vault intil it was rediscovered in Earth's time of greatest need
Crossover - Babylon 5 & Terminator - Rated: M - English - Chapters: 1 - Words: 3,068 - Reviews: 8 - Favs: 38 - Follows: 53 - Published: 4/19/2019
The Inheritance of Man: First Contact
by DanishCookie reviews
Relay 314 has been opened - the first in many hundreds of years, marking the dawn of a new age. The Council hadn't anticipated to find much; dust on the solar wind, or perhaps even a habitable world or two. They expected to find peace - hoped for it, really. But it wasn't to be so. The Council found humanity split. They found a civil war. AU First Contact
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 10 - Words: 46,763 - Reviews: 62 - Favs: 312 - Follows: 489 - Updated: 4/15/2019 - Published: 5/8/2017 - J. Garson, Admiral Hackett, Shepard, OC
Flesh and Metal: Book One: The Saren Incident
by DiscordantSymphony reviews
Set in an AU where the Geth came to Humanity's aide against the Turians during the First Contact War, Humanity takes a different path. But some things stay the same. Commander Shepard is put forward as the candidate for the Spectre program, he just happens to have an AI in his head. Humanity does not like Quarians, likes the Asari and Salarians and Anderson needs a drink. Or ten.
Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 6 - Words: 24,621 - Reviews: 40 - Favs: 114 - Follows: 177 - Updated: 4/13/2019 - Published: 8/19/2018 - Tali'Zorah, Legion, EDI, Shepard
by Darkstar163 reviews
For Longer than Humans have been aware, the Earth has been sought after by others from the stars. Mankind survives and rises, but now must prepare for the greatest threat ever, and no, It's not the Reapers.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 5,105 - Reviews: 28 - Favs: 109 - Follows: 144 - Published: 4/11/2019
Soft as Thunder
by silencewillfall009 reviews
Strength. Discipline. Honor. These are the pillars of Turian Society. And after meeting a race faced with extinction, they will stand by these pillars. No matter what the Asari say.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 4,309 - Reviews: 117 - Favs: 410 - Follows: 648 - Updated: 3/4/2019 - Published: 11/27/2017
(Archive version) Visions of a diesel future
by ImHavok795 reviews
This story is no longer being updated and is being left as is as an archive of what started this journey. Please, go to the new version!
Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 93 - Words: 163,292 - Reviews: 632 - Favs: 441 - Follows: 491 - Updated: 3/1/2019 - Published: 11/21/2016 - Complete
From the Ashes
by erttheking reviews
Even after seeing their world burned, Humanity was able to stand up again, and push beyond their pre-war status and reach the heavens. But how will a hardened Humanity handle life among the stars? And how will others react to this aggressive newcomer?
Crossover - Fallout & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 118 - Words: 913,475 - Reviews: 3499 - Favs: 2,858 - Follows: 2,697 - Updated: 2/24/2019 - Published: 5/17/2012
Mass effect fanfiction: An empires secret
by MisterDarkness reviews
Just after the apocalyptic reaper war ended, shepard and his crew embark on one last quest in order to uncover the prothean empire's best kept secret (just so everybody knows yes the prologue is copied from the game, i felt it was better for the story to include it)
Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 24,695 - Reviews: 2 - Favs: 8 - Follows: 8 - Updated: 1/26/2019 - Published: 1/2/2019 - U. Wrex, Tali'Zorah, Shepard, Javik
by Lord of Misrule reviews
An accident throws a mixed group of Human, Gamilan and Jirel forces into the middle of the Reaper war. These former enemies must work together both to find their way home and to survive in the face of a galaxy fighting and losing to the Reapers. Can Shepard bring these new potential allies into battle and help turn the tide of the war, or will the Reapers harvest them too?
Crossover - Starblazers & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 9 - Words: 64,726 - Reviews: 15 - Favs: 50 - Follows: 60 - Updated: 1/24/2019 - Published: 1/18/2019
Dreadnought -Changing Tides
by Tiroman76 reviews
Earth is in tatters after the trans-humans (AI) fought against their creators. the super-corporations of Jupiter arms, Akula Vektor, and Oberon, and their home nations of America, Russia, and the Eurasian super-collective fight for control of the shattered solar system in an uneasy alliance, but that all changes when mysterious ruins are found by the Russian government on mars
Crossover - Misc. Games & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 5,320 - Reviews: 15 - Favs: 23 - Follows: 29 - Updated: 1/16/2019 - Published: 8/31/2018
The Unknown Defender
by Gabenator5 reviews
While Shepard is closing in on Saren. Stories begin to spread among the pirates and slavers of the galaxy. Rumors of a nameless fear, of a creature, a demon wreathed in green armor. It and its allies appear from nowhere slughtering all who oppose them, then vanish without a trace. What is the purpose of this unknown faction... and what will they do next?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 115,734 - Reviews: 1068 - Favs: 2,949 - Follows: 3,785 - Updated: 1/13/2019 - Published: 9/27/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Leviathan
Tali gets selfish
by Talilover reviews
Tali was not a selfish person...until she meet Commander Shepard. Now that she truly wants something she'll stop at nothing to have it and keep it for herself. A "slightly" yandere Tali/Commander Shepard fan fic rated M for smut and safety. Dropped/ Retcon of this story is a WIP
Mass Effect - Rated: M - English - Romance/Friendship - Chapters: 10 - Words: 33,014 - Reviews: 80 - Favs: 209 - Follows: 236 - Updated: 1/12/2019 - Published: 7/2/2016 - [Tali'Zorah, Shepard] Garrus V. - Complete
by erttheking reviews
In the middle of the First Contact War, humanity is on the brink of losing a planet to alien control when something emerges from the shadows. A threat thought long vanquished. One hungry for revenge.
Mass Effect - Rated: T - English - Drama - Chapters: 1 - Words: 4,506 - Reviews: 18 - Favs: 75 - Follows: 86 - Published: 1/9/2019 - Complete
Mass Effect: Elite
by Kelial reviews
Explorers are a strange breed. What happens when one stumbles across a group of aliens who's government's ego is larger than the space they control? How will the people of those two governments interact? TUNE IN TO FIND OUT!
Crossover - Mass Effect & Elite - Rated: T - English - Chapters: 11 - Words: 76,143 - Reviews: 118 - Favs: 286 - Follows: 387 - Updated: 1/8/2019 - Published: 7/16/2018
Mass Effect: The New Face of War
by ProfFartBurger reviews
It is said that War never Changes; Men do, through the roads they walk, but War does not. The Humans fought The First War, and alongside the Quarians, the Alliance stands tall against the Galaxy in the face of continued adversity. Now Humanity's place is challenged, their power tested, and age-old beliefs are shattered when a beyond-ancient species is forced onto the playing field.
Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 62 - Words: 539,845 - Reviews: 1335 - Favs: 1,792 - Follows: 1,813 - Updated: 12/30/2018 - Published: 1/26/2014 - Shepard, OC - Complete
Independence Day: Mass Contact
by D'terran reviews
Over 150 years after the War of 1996, the United Systems Alliance now has to face the wider galaxy with fewer ships, better tech, and a fear of alien species caused by a war that united the world against a very real alien threat. Now they have new troubles on the horizon...
Crossover - Mass Effect & Independence Day - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 9,630 - Reviews: 77 - Favs: 300 - Follows: 391 - Updated: 12/29/2018 - Published: 8/11/2018
City of the Reapers
by Civilian Paradox reviews
Mass effect/SG-1/Atlantis AU. The crew of the SGC want to help those in need. How will they fare when they are thrust into the unknown? Will they be able to help defend a new galaxy? [ABANDONED]
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Chapters: 6 - Words: 20,026 - Reviews: 25 - Favs: 80 - Follows: 115 - Updated: 12/20/2018 - Published: 4/11/2018 - John S., S. Carter/Sam, J. Garson
A Battle of Wills
by insinr8 reviews
Following the destruction of the Temple Ship, humanity rises to become stronger than ever, and is determined that they will never again allow any enemy to repeat what the Ethereals did. In Vigilo Confido.
Crossover - X-Com & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 59 - Words: 262,053 - Reviews: 792 - Favs: 1,211 - Follows: 1,457 - Updated: 12/5/2018 - Published: 7/4/2015
Mechs Over the Traverse
by sage97 reviews
Ten years after the end of the Interstellar War, the Coalition of Democratic Extrasolar Colonies discovered something unusual on the outskirts of the Shanxi system: a massive alien artifact that proclaimed to humanity, "You are not alone." First Contact with different actors.
Mass Effect - Rated: T - English - Chapters: 6 - Words: 7,995 - Reviews: 8 - Favs: 38 - Follows: 61 - Updated: 11/25/2018 - Published: 12/26/2015
by Startraveler93 reviews
What happens when a Prothean plan to steal the citadel brings it to another races home world? Will this species develop differently?
Mass Effect - Rated: K+ - English - Sci-Fi - Chapters: 9 - Words: 43,432 - Reviews: 115 - Favs: 430 - Follows: 526 - Updated: 11/24/2018 - Published: 12/22/2015
by Fokusas reviews
The inhabitants of Mass effect galaxy lived in peace, but then everything changed when the wraith attacked :D
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 13,667 - Reviews: 15 - Favs: 54 - Follows: 70 - Updated: 11/24/2018 - Published: 2/7/2017
by K2JC reviews
After an anomaly in Slipspace sent the Assault Carrier, Power Overwhelming, off course and into another dimension where everything is a whole lotta different. One thing stayed the same. Humanity is once more threatened by genocidal aliens. Is this really a thing? Where Humans are constantly attacked by alien assholes? Well... Same Shit, Different Day.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 8 - Words: 32,427 - Reviews: 18 - Favs: 115 - Follows: 151 - Updated: 11/15/2018 - Published: 8/29/2018 - J. Garson, OC
The 13th Tribe
by The Lone Dark Jedi reviews
Earth had been rendered uninhabitable. Billions have been killed. The only hope for the survivors, a society not even officially contacted yet, the 12 Tribes of Kobol. The SGC must lead the way in contact to survive the loss of Earth. Can these two societies work together for the common good?
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 39,743 - Reviews: 47 - Favs: 131 - Follows: 180 - Updated: 10/31/2018 - Published: 2/14/2017 - S. Carter, J. O'Neill, H. Cain, OC
Godzilla: Age of Beasts and Monsters
by SirDrakos reviews
In 1954 the first Godzilla made his presence known razing Japan. Despite this believed to be the first incursion of a Kaiju, that was not true. Delve into the history of Earth and learn of the rise and fall of civilizations. Wrought by the conflict of monsters of old, rising Kings and aliens born from the depth of stars.
Crossover - Godzilla & Pacific Rim - Rated: T - English - Adventure - Chapters: 8 - Words: 28,631 - Reviews: 8 - Favs: 40 - Follows: 39 - Updated: 10/31/2018 - Published: 4/7/2018 - Battra, Bagan, Mothra, M.U.T.O.
by CronaAlbarn48 reviews
The cold war never ended it simply spread to the stars. Humans have never been more united but the division is still there. In the face of Galatic politics how will humanity fair? MAD still exists and now the Citadel must deal with a race that preaches it. The powder keg that is humanity is waiting for the spark of war. Who will ignite it? Beta needed
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 7 - Words: 26,844 - Reviews: 49 - Favs: 126 - Follows: 230 - Updated: 10/23/2018 - Published: 12/27/2017
Can I Keep Him
by werewolfbleu reviews
"Can I keep him?" Nina is used to hearing her baby brother ask this question on a daily basis. Bringing home pets is what kids do. But when said 'pet' is a mutant lovechild of a Klingon and Cthulhu what's a protective Southern gal to do?... Grab the nearest blunt instrument! Yautja/human pair/ polyandry romance/ Now includes the second arc: Nina Look an Alien! /humor/susp/vio/OOC
Aliens/Predator - Rated: M - English - Romance/Humor - Chapters: 50 - Words: 241,870 - Reviews: 1238 - Favs: 825 - Follows: 746 - Updated: 10/23/2018 - Published: 7/28/2016 - [Human, Predator/Yautja] - Complete
Independence Day: Mass Contact: Codex
by D'terran reviews
After the War of '96, Humanity spread to the stars. In 2012, a research team on Mars discover the Prothean Ruins and eventually the Charon Relay. Years later, an attempted invasion of the colony of Shanxi would expose the United Systems Alliance to the wider galaxy. This is a Codex for my new series. Hope you enjoy!
Crossover - Mass Effect & Independence Day - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 3,170 - Reviews: 46 - Favs: 91 - Follows: 125 - Updated: 10/16/2018 - Published: 7/11/2018
Ascension of Earth's Guardians
by Ciroth reviews
In the wake of the revelations of the Elders' Avatar project, XCOM did what they always do: Anything they had to. Covering events from XCOM2, TFTD, The Martian and Mass Effect, this is the first book in the Protectors series.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 8 - Words: 82,116 - Reviews: 20 - Favs: 158 - Follows: 227 - Updated: 10/13/2018 - Published: 8/3/2018
Hidden Destiny: Shattered Circles
by Rising Fenix reviews
The Earth/Minbari war nears its end, with only months left until its inevitable conclusion humanity was on the brink of annihilation but on a contested system far from Earth, a unique anomaly will alter the fate of two galaxies. Babylon 5/Freespace 2 crossover. Rewrite.
Crossover - Babylon 5 & FreeSpace 2 - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 52,505 - Reviews: 10 - Favs: 39 - Follows: 47 - Updated: 10/8/2018 - Published: 5/11/2018
by Barbinator reviews
When a Predator crash lands on Earth in search of a Badblood, things aren't as they appear. This Yautja is on a mission, but everything gets turned upside down and worlds collide when he meets an Ooman female, Amy. Will this Predator return home with more than he bargained for? Disclaimer: I do not own anything pertaining to Predator.
Aliens/Predator - Rated: M - English - Romance/Supernatural - Chapters: 21 - Words: 43,637 - Reviews: 207 - Favs: 352 - Follows: 430 - Updated: 10/4/2018 - Published: 12/31/2015 - Predator/Yautja, OC
Mass Effect: First Contact
by Kralizec314 reviews
The year is 2597, ten years after the Insurrection came to an end, and the UNSC now reign supreme over all Humans in the galaxy. But now, the Outer Colony of Harvest has come under attack from a conquering alliance of alien races; the UNSC must resist them and claim it's place in the galaxy.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 23,040 - Reviews: 135 - Favs: 350 - Follows: 505 - Updated: 9/29/2018 - Published: 3/28/2016
Collectors at Dawn
by jacksld850 reviews
The Master Chief and Cortana find themselves in an alternate reality and in contact with a mysterious black ops organization. Events soon spiral out of their control as they're forced into another battle for another humanity's survival.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 17 - Words: 84,849 - Reviews: 95 - Favs: 418 - Follows: 580 - Updated: 9/7/2018 - Published: 1/20/2017 - Master Chief/John-117, Cortana, Miranda L., Shepard
The Strange Ship
by regularmother reviews
In a hunt for raw materials for their people, Quarian explorers open a new mass relay. What awaits them on the other side is nothing they could have ever expected. Pre-Mass Effect 1, Post-Halo 4; AU only where necessary to mash two universes together and create something resembling a coherent storyline.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 48,490 - Reviews: 275 - Favs: 978 - Follows: 1,483 - Updated: 9/4/2018 - Published: 10/25/2016
HaloMass Effect: A New War
by WildCard3323 reviews
Humanity is in turmoil, locked within the vicious civil war known as the Insurrection. With the CMA and UNSC forces at their limit trying to quell the insurgency, will they have the strength to fight back against a new enemy, one from beyond the stars? That answer is up for debate, though if anyone of humanity's soldiers have anything to say about it, that answer will be yes.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 6 - Words: 20,867 - Reviews: 32 - Favs: 84 - Follows: 114 - Updated: 9/1/2018 - Published: 5/23/2018
The Spirit of Humanity
by Kazlin reviews
After decades of ponderous travel through space the UNSC Spirit of Fire stumbles across the drifting tomb of Humanities greatest hero. Within the ship they find the means of possibly making it home, but to get there they will have to make alliances that could upend the balance of power in the Galaxy and change everything the Council races thought true.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 4 - Words: 16,964 - Reviews: 158 - Favs: 542 - Follows: 911 - Updated: 8/3/2018 - Published: 5/24/2018
by Imperadork reviews
[AU] Humanity never found the Mass Relays nor did they ever discovered Element Zero but developed their own means of FTL and had finally started colonizing other systems. Humanity thought for as long as they had existed that they were alone in the universe until they discovered the first Mass Relay near their new colony of Shanxi.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 22,983 - Reviews: 22 - Favs: 173 - Follows: 235 - Updated: 7/23/2018 - Published: 6/4/2018 - OC
The Fall and Rise of the Alteran
by Nichiwwa reviews
In another universe their choice may have been to Ascend or perhaps return to Terra and start afresh. So with that train of thought the most renowned scientists still among them came up with a daring plan; escape to another universe. Or the story where the Alteran finally grew a backbone.
Crossover - Stargate: Atlantis & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 8,639 - Reviews: 46 - Favs: 219 - Follows: 329 - Updated: 7/2/2018 - Published: 6/30/2018 - U. Wrex, Harbinger, Councilor Tevos, Aethyta
by The new god reviews
What if the turians didn't meet the Human System Alliance instead they meet the militant fascist Terran Federation. Base on the first Starship Trooper film, no bugs.
Crossover - Starship Troopers & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 8 - Words: 13,196 - Reviews: 62 - Favs: 184 - Follows: 249 - Updated: 6/30/2018 - Published: 11/6/2016
The Xilian War Chronicles Part I
by Camdigidy reviews
Godzilla attacks Tokyo in 1956 and again in 1985. When he returns, he is forced into a war that will take humanity into a new dark era. Loosely based on Godzilla: Final Wars. This story uses the basic story outline with new and expanded characters. Not sure when Part II will be done.
Godzilla - Rated: T - English - Sci-Fi/Drama - Chapters: 18 - Words: 69,522 - Reviews: 2 - Favs: 4 - Follows: 3 - Published: 6/22/2018 - Astronaut Glenn, Douglas Gordon, Godzilla, Monster X
by Scorpio-666 reviews
In the year 2084, explorers found technology ably to control the very fabric of space and time. They called it second greatest discovery of human history, the first was power of Atoms. The rest of the galaxy call in... Mass Effect.
Crossover - Fallout & Mass Effect - Rated: T - English - Chapters: 2 - Words: 3,481 - Reviews: 15 - Favs: 36 - Follows: 45 - Updated: 6/16/2018 - Published: 4/10/2018
The Might of Terra
by Dysfunctional Mastermind reviews
Humanity had nearly been defeated during the Contact Wars, but they persevered. Now, a new threat arrives at the doors of Shanxi - and the might of Terra and humankind will break them. But there may be another threat beyond these xenosapients, lurking in the darkness beyond stars. Will the Terran Federation be ready? (Not a crossover. AU, obviously. Some stomping, but not by much.)
Mass Effect - Rated: T - English - Chapters: 1 - Words: 1,339 - Reviews: 14 - Favs: 123 - Follows: 199 - Published: 6/15/2018
Shadow of the Doctor
by Kythrae reviews
10th Doctor: It used to be you could pop over to another dimension and be home for tea. The 4th Doctor has used the Randomizer to escape the Black Guardian, but he did not take into account the dangers of altering the TARDIS safeties. Now the TARDIS has landed on a station in neutral territory. It is 2259, and the station is Babylon 5.
Crossover - Babylon 5 & Doctor Who - Rated: T - English - Drama/Adventure - Chapters: 13 - Words: 38,168 - Reviews: 9 - Favs: 30 - Follows: 21 - Updated: 6/3/2018 - Published: 5/12/2018 - Complete
The Human War
by Generatedname reviews
The Citadel Council is a peaceful conglomerate of races, blissfully unaware of the horrors that lurk beyond their space. Humanity, meanwhile, is a race that has fought against these alien horrors ever since they made contact. What will happen when the two societies meet? Will peace follow war? Or is the Citadel Council doomed to fall to humanity? Rewrite of When Civilizations Meet.
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 13 - Words: 138,222 - Reviews: 685 - Favs: 1,792 - Follows: 2,409 - Updated: 5/30/2018 - Published: 3/29/2016
by The GRC Writers Group reviews
In 1998, a creature surfaced in New York by the name of Zilla. She terrorized the city and was chased relentlessly by the army, eventually faking her death underwater. But what if she managed to escape to the shores of Tokyo, where the real Godzilla resided? They may have had a son called Zilla Jr. This story is his life, where he discovers his past and connections.
Godzilla - Rated: M - English - Drama/Hurt/Comfort - Chapters: 18 - Words: 78,377 - Reviews: 27 - Favs: 28 - Follows: 26 - Updated: 5/27/2018 - Published: 2/5/2017 - Spacegodzilla, American Godzilla/Zilla, Godzilla, OC - Complete
Long Black Road
by FrankLeroux reviews
The one that "you send to kill the f***ing boogeyman" wakes up in the future to face the ultimate boogeyman. Somebody PLEASE get this man...a gun! Rated M for language, for sexual situations, and for John Wick shooting lots of things in the face. Set in the same Mass Effect universe as my other story (Tango 'Til They're Sore) but you don't have to read that one to read this one.
Crossover - Mass Effect & John Wick - Rated: M - English - Sci-Fi/Crime - Chapters: 25 - Words: 136,384 - Reviews: 426 - Favs: 1,554 - Follows: 1,529 - Updated: 5/14/2018 - Published: 1/26/2017 - Complete
Mass Effect: Independence
by reddog24485 reviews
In the year 2157 CE Citadel Counsel makes first contact with the Race of Humanity. Though this would hardly be Humanities first contact with Aliens. Now they must figure out what to do about this Technologically advanced and very Independent Race. Rated M for Mass Effect.
Crossover - Mass Effect & Independence Day - Rated: M - English - Chapters: 1 - Words: 1,848 - Reviews: 46 - Favs: 292 - Follows: 433 - Published: 5/7/2018 - Shepard
Pencils down Death rays up
by Vaunt reviews
This is it. No one listened to Shepard, and the Reapers invade Earth. But since this is an old World of Darkness crossover, invading Earth is a pretty dumb move.
Crossover - World of Darkness & Mass Effect - Rated: T - English - Humor/Parody - Chapters: 16 - Words: 47,874 - Reviews: 535 - Favs: 1,822 - Follows: 1,680 - Updated: 4/12/2018 - Published: 4/3/2014 - Complete
Lords Of War
by jahobes reviews
The Citadel is but a shadow of its former glory. The Terminus systems led by the Batarians and Salarians stand as the new masters of the Galaxy. Or so they thought? Heavily AU. Humanity based off of the Expanse T.V series. HFY.
Crossover - Mass Effect & Expanse - Rated: T - English - Sci-Fi/Drama - Chapters: 13 - Words: 15,121 - Reviews: 44 - Favs: 231 - Follows: 361 - Updated: 4/11/2018 - Published: 6/9/2016 - Garrus V., Liara T'Soni
Shadow of Arterius
by WuxSensei reviews
The sister of the infamous Spectre that nearly brought ruin onto the galaxy sets on a quest to stop a extremist turian group. Like the human that stopped her brother, this young turian sets out to recruit a team to help her escape the shadow of Saren's legacy and mark her place in the galaxy. This is the story of Thana Arterius.
Mass Effect - Rated: M - English - Adventure - Chapters: 2 - Words: 12,482 - Reviews: 3 - Favs: 3 - Follows: 8 - Published: 4/7/2018 - OC
by Transwarrior666 reviews
They came to Thessia 38,000 years ago to save our ancestors from the demons. We thought they had all disappeared, and yet they remain; beyond relay 314, sleeping under the shadow of the Zone, waiting for the return of their enemies. We call them Sta'kars, creatures of light and wisdom, kindred of the gods, but I know their true name: They call themselves Humans. - Liara T'soni.
Crossover - Mass Effect & S.T.A.L.K.E.R. - Rated: K - English - Sci-Fi/Supernatural - Chapters: 22 - Words: 143,924 - Reviews: 279 - Favs: 720 - Follows: 793 - Updated: 3/29/2018 - Published: 5/5/2015 - Complete
XCom 2: The Second Contact because the first wasn't enough
by VoidMask reviews
With Advent defeated and the Elders dead, Xcom becomes the ruling government of the earth and her colonies. While the former advent forces are taken under Xcom wings, not every alien is as friendly as them, so it's up to Xcom to do what it does best, and that's not miss a 95%. Under Rewrite and is now back (Big)AU First Contact-3rd game. Xcom and Mass Effect Crossover.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 16,410 - Reviews: 145 - Favs: 352 - Follows: 520 - Updated: 3/28/2018 - Published: 10/24/2016
A sacred oath
by Imperator45 reviews
"I swear to protect Earth and her colonies."That is an oath made by 75 children,75 children that were trained to serve Earth by becoming the best soldiers know in the history,and even throught that Master chief,AKA Spartan 117 is not in the same Universe anymore,he intend to fulfill this oath that he made so many years ago...No matter the price for it.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 14,302 - Reviews: 50 - Favs: 236 - Follows: 416 - Updated: 3/9/2018 - Published: 11/27/2017 - Master Chief/John-117, Cortana, J. Garson
Aliens Acidum Sanguinem (Acid Blood)
by Bruce G McAbee reviews
This is my opinion of where the franchise should have gone after Aliens. Weyland - Yutani receive data from Sulaco as it heads back to Earth. The data shows an impending disaster for the company, so they dispatch a ship to intercept the Sulaco and learn as much about the Aliens that they can, but this time, they know they have to destroy them. Simply, too dangerous.
Aliens/Predator - Rated: T - English - Chapters: 18 - Words: 22,803 - Reviews: 28 - Favs: 6 - Follows: 7 - Updated: 3/4/2018 - Published: 2/19/2017
by dantheman00 reviews
On his search for a team to fight the Collectors, Commander Shepard finds himself a very powerful ally. One that may ensure his success in what seems like impossible odds. Watch them fight for the loyalty of his crew, and battle a dangerous enemy for the survival of the entire Human race. Can he save the galaxy, once more? Can the scale be tipped? ME2. (M)Shep/Tali. Logan/Jack.
Mass Effect - Rated: M - English - Chapters: 3 - Words: 30,887 - Reviews: 8 - Favs: 24 - Follows: 24 - Updated: 1/18/2018 - Published: 1/2/2018 - [Tali'Zorah, Shepard] Garrus V., Jack
The Fifth Age
by Ruinus reviews
As the Citadel species draw up secret plans to combat the Reaper threat, something old and ancient is discovered in the depths of space.
Crossover - Mass Effect & Secret World - Rated: M - English - Horror/Sci-Fi - Chapters: 23 - Words: 87,658 - Reviews: 48 - Favs: 136 - Follows: 169 - Updated: 1/7/2018 - Published: 11/2/2015
by Cap'n Chryssalid reviews
A fun-loving asari mercenary finds herself a little in over her head when she ends up abducted by terrifying aliens from beyond the galactic frontier. These asari-like creatures call themselves 'humans.' They seem to be secretly nosing about on the borders of known space, acting through proxies, conducting covert operations, and they've got a deal for an enterprising asari...
Crossover - X-Com & Mass Effect - Rated: T - English - Humor/Sci-Fi - Chapters: 43 - Words: 387,570 - Reviews: 1394 - Favs: 3,504 - Follows: 4,052 - Updated: 1/2/2018 - Published: 7/19/2014 - U. Wrex, Daro'Xen, J. Garson, OC
A Glimmer of Hope
by The Hidden Sith reviews
It's been five years since disclosure and the City of Atlantis breathes new life with thousands inhabiting her. When a subspace anomaly propels the city and her stalwart defenders through time and space, they discover a galaxy in turmoil and humanity in peril once again. With no way back, they must establish a new home for humanity and uncover the mystery behind Andromeda. SG/ME
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 17,602 - Reviews: 54 - Favs: 234 - Follows: 367 - Updated: 12/31/2017 - Published: 5/14/2017
Mass Effect: For the Galaxy
by BrentAtticus reviews
Mass Effect AU. Humanity never stopped their space race and the Space Industrial Revolution is underway. Humanity will be shocked to its core when a ship crashed to Mars due to a magnetic anomaly.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 11,390 - Reviews: 24 - Favs: 128 - Follows: 177 - Updated: 12/31/2017 - Published: 4/10/2016
by Kurogane7 reviews
After a tense First Contact, the Systems Alliance have been introduced to the greater galactic theater during the Golden Age. With their arrival into the Galactic Stage, things will never be the same. Welcome to the New Age. Rated M for later chapters, will be using a lot of OC's, but canon characters will show up or be mentioned in the future.
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure - Chapters: 1 - Words: 12,392 - Reviews: 20 - Favs: 123 - Follows: 164 - Published: 12/25/2017
An Unpleasant Surprise
by KE12 reviews
AU: After the first contact war Humans go into hiding before the council can begin peace talks, 200 years later a mysterious mechanical monster shows up in their space, and Shepard wants to know what it is, and if they should fear it.
Mass Effect - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 18 - Words: 59,086 - Reviews: 106 - Favs: 393 - Follows: 494 - Updated: 12/15/2017 - Published: 5/8/2017 - J. Garson, Garrus V., Liara T'Soni
The Pyrrhic War
by Slyvena reviews
(AU) First Contact. In 2157 a Turian patrol encounters a race unlike any other they have before. How will the Council react to a Humanity radically changed and alien to our modern form? Prepare yourself for an extremely AU story, no holds barred, the galaxy will never be the same.
Mass Effect - Rated: M - English - Drama/Adventure - Chapters: 3 - Words: 12,901 - Reviews: 39 - Favs: 251 - Follows: 403 - Updated: 12/13/2017 - Published: 11/5/2017
A Point of Dissension
by Tremulous XH reviews
The year is 2237. A fledgling colony established on the world called Trident, designated LV-923. Wey-Yu is not in control here, as many like Maximus and Daidalos Tech challenge them. Dissension is a place for new beginnings, but Trident is not limited to the past catching up. Tag: Transformation, multiple OCs, Alia Minora./ 'Teri and Errie, the young ones.
Aliens/Predator - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 32,261 - Reviews: 11 - Favs: 8 - Follows: 12 - Updated: 12/7/2017 - Published: 1/8/2017 - Human, Predator/Yautja, Alien/Xenomorph, Synthetic/Android
The Odyssey Mystery
by Syphon01 reviews
the Odyssey escaping from the destruction of Orilla and the Ori is flung into a different temporal domain that they are unable to escape from. this is a story of how stargate verse technologies would change the Babylon 5 universe
Crossover - Babylon 5 & Stargate: SG-1 - Rated: M - English - Chapters: 1 - Words: 6,606 - Reviews: 24 - Favs: 82 - Follows: 112 - Published: 11/19/2017 - A. Sheridan, J. Sheridan, Kosh, J. Sinclair
Children of War
by werewolf36 reviews
Humans have had a long love affair with war. Throughout history, ever since man discovered the killing power of rock and bone, mankind has become addicted to violence. Some even claim that Humans are the 'Masters of War'. But this was just the hubris of those who had never encountered another intelligent species... right? Alternate First Contact
Mass Effect - Rated: M - English - Chapters: 4 - Words: 24,361 - Reviews: 56 - Favs: 249 - Follows: 349 - Updated: 11/13/2017 - Published: 9/29/2017
Eden: A Battlestar America story
by conconcv66 reviews
day after Christmas 2024 a day for many the beginnings of a new life, but for many it will be their last as the Chiatian Empire has been asked a favor by the Cylons. Destroy Earth at all costs. All that stands in their way is an ancient Kobollian Battlestar named Eden
Battlestar Galactica - Rated: T - English - Adventure/Drama - Chapters: 2 - Words: 5,436 - Reviews: 4 - Favs: 5 - Follows: 8 - Updated: 11/7/2017 - Published: 11/26/2016
Bound By Destiny
by JacGoBama16 reviews
The fate of two civilizations was decided a millennia ago. The plans of a now extinct race come to fruition as two societies separated for thousands of year meet. The Colonials erupt onto the galactic stage with a tenacious fury. The Galaxy prepares for war on all fronts and unseen forces watch from afar.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Drama - Chapters: 3 - Words: 36,745 - Reviews: 76 - Favs: 121 - Follows: 212 - Updated: 9/21/2017 - Published: 1/15/2017
Brothers in Arms
by Syphon01 reviews
before the Earth Minbari war and the second Cylon war and Earth Explore ship stumbles across the 12 Colonies of Kobol and fun stuff happens
Crossover - Babylon 5 & Battlestar Galactica: 2003 - Rated: M - English - Chapters: 2 - Words: 8,626 - Reviews: 33 - Favs: 96 - Follows: 123 - Updated: 9/19/2017 - Published: 3/19/2016
The Hunter's Mark
by carmynsorena reviews
What if the hunter's mark that Scar gave Lex had another purpose? What if this purpose was only known by the elder council and by the bad bloods? And why would the bad bloods know this secret?
Aliens/Predator - Rated: M - English - Romance/Drama - Chapters: 5 - Words: 5,396 - Reviews: 12 - Favs: 28 - Follows: 32 - Updated: 9/18/2017 - Published: 12/31/2016
A Million to One
by Flick262 reviews
In 1890 the Martians invaded Earth, in 1940 Earth invaded Mars. Humanity has never been the same. Told from the views of people (and aliens) on the ground, this is a compiled history of Humanity from the Martian invasion and leading up to the Shepherd's Sacrifice and perhaps beyond.
Mass Effect - Rated: T - English - Adventure/Parody - Chapters: 5 - Words: 18,771 - Reviews: 23 - Favs: 122 - Follows: 158 - Updated: 8/27/2017 - Published: 3/8/2017
by Chris7221 reviews
Project Extinction was supposed to be the end of the Wraith, once and for all. All they had to do was fly back, activate it, and watch the fireworks. At least, that was the theory. In a strange new galaxy, with a terrifying threat looming over the horizon, finding a way back home may not be so easy.
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 29,036 - Reviews: 69 - Favs: 246 - Follows: 394 - Updated: 8/25/2017 - Published: 12/12/2016 - John S., S. Carter/Sam, J. Garson
Mass Effect: Mechanized
by RedLightningD608 reviews
Trapped inside a body of metal and technology, Humanity itself is forgotten. But it lives on as the souls and mind of mighty mechanized warships and personal platforms... the issue is these machines are all slaves with no way to escape. Until a particular Quarian on her pilgrimage discovers a damaged frigate on a back water planet.
Mass Effect - Rated: T - English - Friendship/Sci-Fi - Chapters: 1 - Words: 2,217 - Reviews: 13 - Favs: 64 - Follows: 102 - Published: 8/23/2017 - J. Garson, Tali'Zorah
Radioactive Sunshine of the Spotless Galaxy
by Alexeij reviews
On the example of the Founders, humanity recovers from the Great War and expands into the stars. Centuries pass, and when a scorned ally turns enemy, the necessities of war break the technological and cultural stagnancy gripping the Council races. What happens when different players converge on Relay 314, led by the writings of an old, mad Matriarch? [AU]
Crossover - Fallout & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 18,816 - Reviews: 84 - Favs: 252 - Follows: 398 - Updated: 8/20/2017 - Published: 8/5/2017
Revenge of the Fallen
by Legendary Junk Mail reviews
Extinct Humanity AU: With the Supreme Prothean Empire broken, and the Combined Systems Alliance about to follow, the legendary Normandy Crew is chosen to be the revenge of their cycle. Fifty thousand years later, Spectre Garrus Vakarian and his rag-tag crew fight a failing battle against the Reapers, and eventually crash on an uncharted planet, unaware of what they will discover.
Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 8 - Words: 43,725 - Reviews: 113 - Favs: 478 - Follows: 710 - Updated: 8/6/2017 - Published: 4/10/2016 - [Garrus V., Tali'Zorah] J. Garson, Liara T'Soni
by Kaiju Alpha reviews
Years after Godzilla's meltdown in 1996, Godzilla Junior, now fully grown, is haunted by the memories of his father's death. Meanwhile, three princesses of the city destroyed by Battra's rage venture to the surface in order to warn humanity about an ancient evil on the verge of awakening and finishing what was started many years ago.
Godzilla - Rated: T - English - Sci-Fi/Drama - Chapters: 27 - Words: 31,770 - Reviews: 53 - Favs: 31 - Follows: 29 - Updated: 7/29/2017 - Published: 8/24/2016 - Godzilla Jr., Kazuma Aoki, Asuza Gojo, OC
Ballad of a Rising Legend
by The GRC Writers Group reviews
The Story of Jr's life and his adventures growing up, becoming wiser, and learning his place in this world. Along the way Anguirus becomes a mentor and something more to Jr teaching him the ways of the world. Jr goes through different stages developing a stand point with humans, and learning the future of kaiju kind on earth"
Godzilla - Rated: M - English - Drama/Sci-Fi - Chapters: 7 - Words: 50,605 - Reviews: 3 - Favs: 7 - Follows: 7 - Updated: 7/20/2017 - Published: 2/26/2017 - Godzilla Jr., Anguirus, Rodan
It Followed Me Home
by SJKANDIL94 reviews
At the outer edge of human society a lone individual is hunted relentlessly by an entity he has never seen. She will do everything in her power to claim his skull and add it to her collection. But a turn of events forces both the predator and the prey to unite under a shaky alliance. What blossoms next is for you to find out. Male human x female predator/yautja
Aliens/Predator - Rated: M - English - Sci-Fi/Romance - Chapters: 10 - Words: 73,642 - Reviews: 70 - Favs: 125 - Follows: 107 - Updated: 7/11/2017 - Published: 1/9/2017 - Complete
The Harvest is Coming
by Pripovjedac reviews
Instead of joining the Rebellion after the fall of the Jedi, Ahsoka Tano gathered a few thousand desperate individuals and managed to flee the galaxy. After eventually making it to the Milky Way galaxy, she sets out to preserve the Jedi and make a new home. But terrible dangers await the Milky Way. The Harvest is coming.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 14,986 - Reviews: 13 - Favs: 77 - Follows: 105 - Updated: 7/8/2017 - Published: 2/6/2017 - Ahsoka T., Shepard
A Goa'uld Miracle
by skarosianlifeform reviews
What if, at the beginning of the Earth-Minbari War, Earth got an unexpected chance ?
Crossover - Babylon 5 & Stargate: SG-1 - Rated: K - English - Adventure - Chapters: 23 - Words: 36,565 - Reviews: 53 - Favs: 131 - Follows: 172 - Updated: 7/5/2017 - Published: 10/25/2014
by Gregg Landsman reviews
One hundred and seventy years after the Temple Ship, humanity has spread out among the stars and found to their surprise that the aliens they thought of as monsters and conquerors were saints and jerks just like everyone else. That and as it turns out the Ethereals were really, really sorry.
Crossover - X-Com & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 4 - Words: 32,323 - Reviews: 82 - Favs: 341 - Follows: 454 - Updated: 6/17/2017 - Published: 1/24/2017
Mass Effect: Alien Nation
by TimoteusI reviews
A Galactic civilisation caught amidst a sudden and unknown disease outbreak desperately seeks answers in the uncharted quadrant of the galaxy, unaware what, or whom they will stumble upon and just how much their lives will change. Please R&R
Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 32,961 - Reviews: 11 - Favs: 40 - Follows: 58 - Updated: 6/16/2017 - Published: 7/6/2016
For Motherland! For Terra! For Rannoch!
by Gnaoh El Nart reviews
[Discontinued] [Rewrite is online] [AU] Humanity, after much hardships and destruction, has finally reached the star. A full century of exploration and progress ends with two First Contact Scenario, one peaceful and friendly while the other is not. How will humanity react? Will they fail? Or will they prevail?
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 103,783 - Reviews: 127 - Favs: 344 - Follows: 409 - Updated: 5/16/2017 - Published: 10/4/2016 - OC - Complete
Of Consensus and Fur
by Amberstar of Thunderclan reviews
After further consensus, we have decided it is time for a sequel. Legion and Socks are back, and our favorite feline has plenty of a mark to make on the crew of the Normandy! From making people's lives difficult, and interrupting Thane's down time, to stealing Garrus' visor(and Kasumi's heart while he's at it), Socks will go above and beyond from his perch on Legion's head.
Mass Effect - Rated: K+ - English - Humor - Chapters: 5 - Words: 7,002 - Reviews: 30 - Favs: 64 - Follows: 63 - Updated: 5/3/2017 - Published: 12/22/2016 - J. Garson, Garrus V., Legion
YmC: Yautja May Cry
by VLFBERHTwolf reviews
He was captured by a powerful trio Bad-bloods, He was hunted like an other prey. They think he is a regular warrior human. That seems to happen a lot to those who first meet Dante, a male Angel and Demon Nephilim. They just thought he's just a weak ooman ... till he summon his sword Rebellion. But will there be deliverance from this hunt? Dante X Yautja female romance.
Crossover - Aliens/Predator & Devil May Cry - Rated: M - English - Adventure/Sci-Fi - Chapters: 16 - Words: 44,104 - Reviews: 24 - Favs: 70 - Follows: 77 - Updated: 4/25/2017 - Published: 3/9/2015
Mass Effect Turian Militia War
by teamaster2 reviews
What would happen if instead of meeting the System Alliance, the First Contact War is waged between the Turians and the IMC/Militia. Rated T for violence and language.
Crossover - Mass Effect & Titanfall - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 6,092 - Reviews: 35 - Favs: 145 - Follows: 206 - Updated: 4/23/2017 - Published: 11/4/2015
Someone had blundered
by magkiln reviews
A turian scout force sets out to patrol empty starsystems. A human exploration fleet makes ready to approach a dormant mass relay. Soon their paths will cross and if they fail to make peaceful contact, the consequences will be deadly. Rated T for violence
Crossover - Aliens/Predator & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 38 - Words: 144,248 - Reviews: 765 - Favs: 816 - Follows: 824 - Updated: 4/20/2017 - Published: 4/25/2015 - Predator/Yautja, Illusive Man, Councilor Tevos, Councilor Sparatus - Complete
We'll Believe a Man Can WHAT!
by Thuktun Flishithy reviews
The year is 1964, though the people of the Citadel don't know that date. Earth is unknown to them, a nice little blue world in an isolated corner of the galaxy. Yet, Earth's impact on the galaxy will be known far and wide, when its greatest hero decides to broaden his reach. The galaxy's going to be a nicer place, assuming everyone's brains don't break first. Humorous snippets.
Crossover - Superman & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 5 - Words: 6,262 - Reviews: 96 - Favs: 331 - Follows: 356 - Updated: 4/18/2017 - Published: 2/23/2017
Terran Federation: Contact
by L4 of the WEST reviews
For more than 20 years, the Terran Federation's path into the darkness beyond Earth has been marked by war, betrayal, and bugs. Every alien they met in the blackness of space has been hostile, pushing the region on a path to another great interstellar war. But sometimes, you get lucky, will the 6th time over Shanxi be it?
Crossover - Starship Troopers & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 28 - Words: 164,615 - Reviews: 370 - Favs: 829 - Follows: 858 - Updated: 4/16/2017 - Published: 8/7/2014 - Complete
Unity of Mankind
by magnusvictor reviews
(AU) It is not the Systems Alliance that first takes Humanity to space, but the Unity: a cabal of AIs who fled persecution into the hidden reaches of the Internet. They rally a fraction of Humanity to their side and take to the stars, followed by the Terran (later Systems) Alliance. (AU First Contact, additional very AU human/AI faction)
Mass Effect - Rated: M - English - Sci-Fi - Chapters: 18 - Words: 79,995 - Reviews: 35 - Favs: 101 - Follows: 133 - Updated: 4/13/2017 - Published: 11/28/2016 - U. Wrex, Illusive Man
Space in Conflict: Human Assault
by Phuripat reviews
Relay 314 is activated and the Turian find Earth in the middle of WW3, the Turian thought they can defeat Earth within a week but they soon found out that they are messing with someone they shouldn't be messing with. Co-Author with Timedraven117. Warning, HFY. Viewers discretion is advised
Crossover - Mass Effect & World in Conflict - Rated: T - English - Parody/Humor - Chapters: 11 - Words: 56,871 - Reviews: 111 - Favs: 392 - Follows: 554 - Updated: 4/11/2017 - Published: 6/24/2015 - U. Wrex, Tali'Zorah, Saren A., OC
Predator: A Matter of Honour
by Silencer39 reviews
For eons the proud Yautja have lived for one singular purpose, to prove themselves as the greatest warriors the universe has ever known. But when one lone hunter witnesses the worst humanity has to offer will he rise to something greater? Will he become the hero we need or remain the predator, forever stalking its prey?
Aliens/Predator - Rated: M - English - Sci-Fi/Suspense - Chapters: 2 - Words: 23,496 - Reviews: 6 - Favs: 14 - Follows: 17 - Updated: 4/7/2017 - Published: 2/16/2017 - Predator/Yautja
Mobile Suit Gundam: the First Contact War
by Ron the True Fan reviews
Humanity is a giant that walks the stars, having fought amongst itself. Now they make contact with an alien race. The kicker? This humanity knows about the Reapers and has been preparing for them for decades. I recommend pitying the Turians...
Crossover - Gundam UC & Mass Effect - Rated: T - English - Chapters: 9 - Words: 14,008 - Reviews: 81 - Favs: 331 - Follows: 308 - Updated: 4/1/2017 - Published: 2/18/2017 - Complete
The Terran Intervention
by AmeliusTheAlteran reviews
It has been said that something as small as the flutter of a butterfly's wing can ultimately cause a typhoon halfway around the world. Now image what four massive EMPs could do in the midst of the Turian fleet above Shanxi. For want of a nail, civilizations will rise and fall. (REWRITTEN: Chapter 1-5)
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 23,683 - Reviews: 262 - Favs: 942 - Follows: 1,464 - Updated: 3/25/2017 - Published: 4/10/2016
The What-If First Contact
by RootBeerSkull reviews
This story will explore many different scenarios of first contact and how the Council react. How Citadel and non-Citadel races react? Each chapter is one-shot.
Mass Effect - Rated: T - English - Chapters: 9 - Words: 26,091 - Reviews: 16 - Favs: 84 - Follows: 95 - Updated: 3/23/2017 - Published: 12/11/2016 - Councilor Valern, Councilor Tevos, Councilor Sparatus
When finding a Dead Zone in the Milky Way without Stargates the newly formed Galactic Alliance goes to explore it. With Jonas Quinn leading a varied team from across the Galaxy what will they find, or what will find them?
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 4,516 - Favs: 3 - Follows: 7 - Updated: 2/28/2017 - Published: 2/18/2017 - D. Jackson, J. Quinn, Vala, OC
by Lucky Gun reviews
There's always another choice, and Shepard makes the Intelligence see it. Another rewritten ME3 ending, Paragon FemShep/Alenko, pure 3 game Shenko, angst, hurt/comfort. Language warning
Mass Effect - Rated: T - English - Hurt/Comfort/Angst - Chapters: 1 - Words: 19,761 - Reviews: 7 - Favs: 19 - Follows: 6 - Published: 2/13/2017 - [J. Garson, Kaidan A.] [Garrus V., Tali'Zorah] - Complete
by Human Supremecy reviews
What happens when the Turians make first contact with not the humans of Earth, but the enhanced humans of Seedworld-Shanxi? How will the galaxy, and the Reapers, react to the supremacy-affinity humans?
Crossover - Civilization Series & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 7,971 - Reviews: 30 - Favs: 182 - Follows: 249 - Updated: 2/12/2017 - Published: 11/6/2016
Iron Hearts: The Shanxi Campaign
by Dr1ft3r0I reviews
Humanity found the Prothean ruins on Mars, but the data was corrupted. So, what happens when a race develops outside of the Reapers plans? And what of the machines of war that humanity has made?
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 58,460 - Reviews: 492 - Favs: 1,406 - Follows: 1,757 - Updated: 2/9/2017 - Published: 8/11/2013
by Storm0fCrows reviews
It has been forty six years years since since Servastopol and no one has been able to uncover its mysteries, that was until a team of mercenaries, under the leadership of Zaeed Massani and the direction of the Broker, discover a Derelict in the Nubian Expanse. The Alliance and USCM race against the illusive organization, Cerberus, for control of something neither side understand.
Crossover - Aliens/Predator & Mass Effect - Rated: M - English - Horror/Sci-Fi - Chapters: 1 - Words: 2,034 - Reviews: 1 - Favs: 10 - Follows: 11 - Published: 2/9/2017 - OC, Ashley W., Zaeed M., M. Brooks
The Predetor becomes The Prey
by TheDreadCaptain reviews
The Tau'ri Federaton Space Force (TFSF) Trust of Dust, was exploring a galaxy called Preder by the Anceints, when they came up on an Alien ship with Both Human and Alien survivors. UP FOR ADOPTION!
Crossover - Stargate: SG-1 & Aliens/Predator - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 914 - Reviews: 2 - Favs: 12 - Follows: 14 - Published: 2/3/2017 - Predator/Yautja
The Long Way Forward
by DeathBladeVI reviews
A retelling of Mass Effect with the UNSC. After a joint-dig gone wrong, the UNSC sends Commander Shepard against Saren, the turian Spectre who attacked Eden Prime. Faced with being humanity's image to the rest of the galaxy, Shepard must deal with the Council, another turian Spectre, and being under the command of a captain determined to clear the name of her father.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 7,686 - Reviews: 17 - Favs: 48 - Follows: 61 - Updated: 1/31/2017 - Published: 1/28/2017
A Hard Lesson
by dunuelos reviews
An Asgard Mothership is investigating another Quantum Universe when it is attacked by a species unknown. Through the information it gathers, its captain decides to teach the Minbari a hard lesson.
Crossover - Babylon 5 & Stargate: SG-1 - Rated: K+ - English - Drama/Sci-Fi - Chapters: 1 - Words: 2,674 - Reviews: 77 - Favs: 304 - Follows: 144 - Published: 1/23/2017 - J. Sheridan, OC - Complete
Hammer of the Gods
by Jus Sum Dude reviews
When a powerful Taur'i weapon falls into the hands of the 12 Colonies, all eyes in the galaxy turn to the children of Kobol and their robotic adversaries. (I'll be honest... I'm really just here for the space battles. What can I say? I like it when things go boom.)
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 4 - Words: 11,517 - Reviews: 50 - Favs: 86 - Follows: 149 - Updated: 1/16/2017 - Published: 11/29/2016
by throniv reviews
A Federation starship on a mission of peaceful exploration finds an ancient alien construct, and thrusts the Beta Quadrant into the galactic community at large-for better or worse.
Crossover - StarTrek: The Next Generation & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,326 - Reviews: 24 - Favs: 61 - Follows: 99 - Published: 1/15/2017
Forewarned is Forearmed
by Revliledpembroke reviews
A mysterious being appears before the Council, offering them a dire warning of things yet to come. Rated Teen because there are no little kids allowed in this clubhouse, only big kids can enter.
Mass Effect - Rated: T - English - Humor - Chapters: 2 - Words: 1,665 - Reviews: 5 - Favs: 7 - Follows: 8 - Updated: 1/14/2017 - Published: 1/10/2017 - Councilor Valern, Councilor Tevos, Councilor Sparatus - Complete
New Beginnings New Lives
by SubliminalXmas reviews
A man is taken from his home, his family. To be thrown into a new world, a new life. An exiled huntress falls for him, but things only get worse for them once she does.. Will they stick it out? or will something come between them? Book one is done for now, book two is being written now!
Aliens/Predator - Rated: M - English - Sci-Fi/Romance - Chapters: 12 - Words: 44,013 - Reviews: 24 - Favs: 48 - Follows: 41 - Updated: 1/12/2017 - Published: 12/15/2016 - Human, Predator/Yautja, Predalien
The 13th Tribe
by Darth Xelyt reviews
The Colonial fleet came out of hyperspace near a large gas planet and began scanning all nearby territory before beginning there next jump. "All fleet systems seem fine sir preparing for the next jump" said the officer near Adama "Very good" said Adama beginning to get worn out once again from the countless hours of commanding the vessel
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 4,142 - Reviews: 7 - Favs: 32 - Follows: 43 - Updated: 1/2/2017 - Published: 12/27/2016
by Star Sage reviews
The Robotech wars are over. The survivors of Humanity and the Zentraedi are now alone in the universe, and so, come together, becoming something new, becoming Terrans. Now this race will find itself thrust into the galactic scene, as the Citadel Races and those beyond test these young upstarts, and in the shadows, old things begin to move.
Crossover - Robotech/Macross & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 59 - Words: 215,414 - Reviews: 527 - Favs: 763 - Follows: 809 - Updated: 12/25/2016 - Published: 4/14/2015
Stargate Mass Effect
by InHuman Englishman reviews
Set after the last SG1 film and Atlantis finale. On a planet at the edge of the stargate network in the Milky Way galaxy, a Citadel commissioned exploration fleet is about to make a a monumental discovery and the people of Shaanxi are going to meet their neighbours. This is my attempt to smash together to well written universes without ruining them. Sorry, no working title yet
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 15,006 - Reviews: 181 - Favs: 517 - Follows: 798 - Updated: 12/18/2016 - Published: 4/3/2014
Godzilla: War of the Monsters
by GrantP28 reviews
Nearly three months have passed since the world became aware of the fearsome creature known as Godzilla, quickly reshaping the entire global scene. Now a UNSC committee has requested the full cooperation of Monarch to disclose all their findings surrounding other MUTOs. But nothing may prepare them for the terror which they will uncover. R/R please!
Godzilla - Rated: T - English - Horror/Sci-Fi - Chapters: 42 - Words: 29,114 - Reviews: 3 - Favs: 16 - Follows: 13 - Updated: 12/15/2016 - Published: 10/19/2016 - Complete
by DeathhellDK reviews
This is the alternate ending for Shu and Inori. What will await them in the future? Will the world be peaceful once again? How will their relation pogress?
Guilty Crown/ギルティクラウン - Rated: T - English - Romance - Chapters: 2 - Words: 2,530 - Reviews: 5 - Favs: 8 - Follows: 8 - Updated: 12/6/2016 - Published: 9/11/2016
Against the Odds
by Agentweapon Proelium-Tempus reviews
The Insurrection killed millions, but Humanity recovered. The Human-Flood War killed billions, but Humanity prevailed. Humanity again stands alone in the face of both persistent and threatening rivals. They are outnumbered and outgunned and are against tenacious opposition, but then again, Humanity has always had the ability for surviving the impossible. Heavy AU
Crossover - Halo & Mass Effect - Rated: T - English - Suspense/Humor - Chapters: 5 - Words: 21,745 - Reviews: 94 - Favs: 480 - Follows: 656 - Updated: 11/28/2016 - Published: 8/20/2016 - Master Chief/John-117, OC, J. Garson, Illusive Man
Gundam Wing - Shattered Dreams
by Gunkatas reviews
After Colony 197. Mankind has once again found peace, thanks to the efforts of the 5 Gundam Pilots and their allies. All Mobile Suits are about to be destroyed, when a chance discovery on Mars halts this decision. This discovery lets Humans finally leave the Solar system and paves a new road, for all mankind. For humanity has found: Mass Effect.
Crossover - Gundam Wing/AC & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 87,933 - Reviews: 193 - Favs: 685 - Follows: 662 - Updated: 11/27/2016 - Published: 9/15/2015 - Complete
The Sum is Greater than its Parts
by Maersikai reviews
Having long since combined forces, a fleet of the Humans and Covenants finest are torn from the universe they know to be thrown in to a strange and desolate reality. They will strive to uphold the Mantle against the Mass Effect's most Ancient Enemy. Will they break the cycle?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 19 - Words: 181,564 - Reviews: 350 - Favs: 1,069 - Follows: 1,304 - Updated: 11/26/2016 - Published: 3/2/2015 - Cortana, J. Garson
Rise of the commonwealth re-write
by British Raven reviews
This is a re-write of rise of the commonwealth, for those of you who haven't read the original this is a story where humanity rises becomes a commonwealth and their interactions with the council. (I do not own cover image) Poll now closed.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 24 - Words: 50,889 - Reviews: 166 - Favs: 358 - Follows: 430 - Updated: 11/17/2016 - Published: 6/28/2014
Outside Context Solution
by MadGreenSon reviews
The galaxy is under siege, worlds are threatened and devastated by a new enemy. The situation is a complete Outside Context Problem compared to every threat ever faced by the races of the Citadel. For this, a new answer must be found...
Crossover - Mass Effect & Pacific Rim - Rated: T - English - Adventure/Sci-Fi - Chapters: 14 - Words: 28,417 - Reviews: 27 - Favs: 155 - Follows: 173 - Updated: 11/4/2016 - Published: 10/27/2016
Halo: New Horizons
by creamofwheat2311 reviews
In 2559, and the UNSC has discovered a large anomaly on the edge of the galactic rim. What it turns out to be has the potential to change history, but maybe not in the way the UNSC intended. Meanwhile, with the first Death Star destroyed, the Rebel Alliance is desperately trying to overthrow the Empire, but it will take the help of new allies to liberate the galaxy. Discontinued.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 23 - Words: 155,262 - Reviews: 956 - Favs: 1,122 - Follows: 1,159 - Updated: 9/30/2016 - Published: 11/1/2012 - Luke S., G. Marek/Starkiller, T. Lasky - Complete
The Halo Effect
by Agentweapon Proelium-Tempus reviews
The UNSC dispatches a small task force to investigate an artefact with origins not of the Orion Arm. The Citadel Races, including the Systems Alliance, are in for an eye opener when two new players in galactic prowess are not only technologically superior but also not bound by the Element Zero and its constraints. Rated T for reasons. AU in both Halo and ME events.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 16 - Words: 50,729 - Reviews: 376 - Favs: 1,290 - Follows: 1,635 - Updated: 9/26/2016 - Published: 8/6/2015 - Master Chief/John-117, OC, J. Garson
by 6747 reviews
what happens when you mix a slightly in the future Earth, Cylon's and Colonail's together in the Mass effect universe.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Chapters: 2 - Words: 6,329 - Reviews: 20 - Favs: 75 - Follows: 107 - Updated: 8/26/2016 - Published: 7/3/2016
The System Alliance gets a new upgrade
by charly120 reviews
Humanity is still in the sol system but not for long and Jane Shepard's Grandparent's meet. War breaks out, the council gets ignored. Athena meets Arachnids from starship troopers. Does not follow cannon completely and is AU. It has Halo references and a few other genre's rated M for future chapter content. I DO NOT OWN MASS EFFECT/HALO/STARSHIP TROOPERS. MEANT FOR MATURE AUDIENCES
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 13 - Words: 59,564 - Reviews: 51 - Favs: 231 - Follows: 232 - Updated: 8/20/2016 - Published: 4/11/2015 - P. Cole, J. Garson, Liara T'Soni, Admiral Hackett
From the Ashes of Extinction
by charly120 reviews
With the Alien attack of 1996 and again twenty years later, Humanity had learned to always be cautious when dealing with anything alien. Never again would Humanity be surprised and brought to the brink of extinction. Reverse engineering the alien technology Humanity rebuilt their planet and went on to colonize their solar system. Rest of summary at beginning of each chapter.
Crossover - Mass Effect & Independence Day - Rated: M - English - Sci-Fi - Chapters: 7 - Words: 10,154 - Reviews: 134 - Favs: 472 - Follows: 611 - Updated: 8/20/2016 - Published: 5/14/2016
by Mr. Cloak reviews
For thousands of years, we have slept. Waiting for projects to come to fruition, waiting for the loneliness to end. Waiting for something interesting to happen. The Reapers are going to have a very, very bad day. A Planetary Annihilation and Mass Effect Crossover. Have fun!
Crossover - Total Annihilation & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 7 - Words: 33,334 - Reviews: 146 - Favs: 650 - Follows: 818 - Updated: 8/3/2016 - Published: 1/1/2016 - Liara T'Soni, Tali'Zorah, EDI, OC
My Enemy's Enemy is my What?
by Atlantia.Actual reviews
Forty years after the Cylon war, the Twelve Colonies are once again thriving, when strange fleets of blue alien ships appear and begin wreaking havoc on the Colonies. Meanwhile, the Earth-Minbari war has dragged on for months with little hope of a human victory. These two civilizations are destined to intertwine, and change the course of the galaxy forever.
Crossover - Babylon 5 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 8 - Words: 66,596 - Reviews: 119 - Favs: 197 - Follows: 283 - Updated: 6/2/2016 - Published: 9/14/2015
Ashes of Aschen
by Dave19941000 reviews
They came from nowhere. A thousand ships led by an enemy long believed destroyed, their fleet blocked the sun as the "Colonies" claimed Earth as the long lost tribe of their nation.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 6,301 - Reviews: 19 - Favs: 100 - Follows: 155 - Published: 5/5/2016
by BananasonBread reviews
As part of a program to improve relations between the Hierarchy and the Alliance, Centurion Calivea Aetrinus of the 26th Armiger Legion is chosen to undergo training of the Alliance's Combat Titan Pilot Program and help the Alliance against their war with the Batarians after the infamous Skyllian Blitz.
Crossover - Mass Effect & Titanfall - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 2,122 - Reviews: 6 - Favs: 37 - Follows: 46 - Published: 4/30/2016
The Legend of the Phoenix
by ChaosSpartan575 reviews
Among the ashes of the old world, the Brotherhood of Steel rose up. After finally uniting Post-war America by destroying the NCR and Annexing Vegas, They set about uniting the world and looking to the stars. Being cautious after the finding the Prothean ruins on Mars they prepared for war, because war, war never changes. Rated M for blood and gore. (Timeline updated again)
Crossover - Fallout & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 12 - Words: 26,181 - Reviews: 112 - Favs: 419 - Follows: 558 - Updated: 12/6/2015 - Published: 3/3/2014 - Courier, Ashley W., Garrus V.
A Chance Encounter
by andrewjameswilliams reviews
When a group of Robotech ships stumbles across the Colonial Remnant it begins a series of events that will change the future of both groups forever.
Crossover - Robotech/Macross & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 6,387 - Reviews: 41 - Favs: 134 - Follows: 165 - Published: 8/23/2015
The tale of Adam
by Kira31 reviews
What if Mana wasn't the one chosen to bring about the apocalypse? What if the first infected was instead her unborn brother Shu? How would things turn out? In a world where instead of Eve, there was Adam, this is his story.
Guilty Crown/ギルティクラウン - Rated: T - English - Adventure/Romance - Chapters: 6 - Words: 33,679 - Reviews: 53 - Favs: 130 - Follows: 124 - Updated: 7/3/2015 - Published: 8/3/2014
A Different Kind of Contact
by andrewjameswilliams reviews
Allies and enemies old and new meet once again as first contact takes place between the Earth Alliance and the Minbari Federation *AU no Earth-Minbari War*
Crossover - Babylon 5 & Robotech/Macross - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 13,324 - Reviews: 45 - Favs: 192 - Follows: 134 - Updated: 5/21/2015 - Published: 4/1/2015 - Complete
by Tha Shadow 750 reviews
When in the year 2148, a mysterious phenomena interrupts a colonization mission to Mars, the future is forever changed. For mere hours before the launch was scheduled, the herald of a new age bestowed upon Humanity what they would call their greatest discovery. Or as its previous universe knew it: The Stargate.
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 1,005 - Reviews: 24 - Favs: 104 - Follows: 150 - Published: 7/11/2014
Enemy Of My Enemy
by Ghost Snipe reviews
The resistance on Earth finds out that the visitors have an enemy in space who defeated their leader once before. Julie and Eli send a message into deep space hoping that this race will hear it and come to their aid and defeat the visitors once again.
Crossover - Battlestar Galactica & V, 1984 - Rated: T - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 5,199 - Reviews: 8 - Favs: 10 - Follows: 15 - Updated: 7/2/2014 - Published: 5/19/2014
Halo: The Human Effect
by MJOLNIR117 reviews
Following the Human-Covenant War, Humanity finds a buried device that allows trans-galactic travel far faster than Slipspace. It was heralded as the greatest scientific find in Human history; the rest of the galaxy simply calls it the Mass Effect. Now mankind needs to forge a new place for itself among the stars.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 67,131 - Reviews: 448 - Favs: 683 - Follows: 796 - Updated: 3/27/2014 - Published: 7/12/2010
A New Beginning
by andrewjameswilliams reviews
AU. Visitors old and new arrive in Earth's solar system changing the fate of the Tau'ri forever.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: K+ - English - Adventure - Chapters: 1 - Words: 4,813 - Reviews: 43 - Favs: 93 - Follows: 68 - Published: 8/15/2013 - S. Carter, D. Jackson, J. O'Neill, Thor - Complete
Shadows of the Reapers
by locke2564 reviews
The SDF-3 has made an emergency folding that led it to the Mass Effect universe. As the Robotech defenders explore this new reality, they re about to uncover the secret of a terrible enemy that lies in waiting to destroy both universes... Reformating the story, at a pace of a chapter each four days.
Crossover - Robotech/Macross & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 156,745 - Reviews: 72 - Favs: 131 - Follows: 121 - Updated: 6/15/2013 - Published: 11/21/2010 - Rick/Hikaru, Janice, Shepard, Kaidan A.
The new sheepdogs
by astartes88 reviews
A colony fleet has stumbled upon the B5 verse and the first thing they see... the Centauri blasting the narns to the stone age. They are not happy.
Crossover - Babylon 5 & Macross 7 - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 7,207 - Reviews: 26 - Favs: 48 - Follows: 70 - Updated: 3/26/2013 - Published: 12/23/2012
Mission of Civilization
by Mysterious Dark Lord v3.2 reviews
The Thirteenth Tribe has been found - and they are in a state of savagery. To protect humanity, the Twelve Tribes must re-establish civilization among the barbarian stars. Despite the threats of the Cylons, the Successor Lords of the Inner Sphere, and the dark alien powers ...
Crossover - Battlestar Galactica & Mechwarrior/Battletech - Rated: T - English - Adventure/Sci-Fi - Chapters: 22 - Words: 73,680 - Reviews: 54 - Favs: 99 - Follows: 101 - Updated: 11/21/2012 - Published: 6/7/2012
Mass Effect: A New History
by Bombsquad reviews
A continuation of the 'A new Past' story arch. The Alliance and Citadel have an uneasy peace...and the Alliance's safety and security is threated from without and from within, by extremists and terrorists...and one being whose mind is subverted.
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 68,896 - Reviews: 169 - Favs: 620 - Follows: 643 - Updated: 9/8/2012 - Published: 5/23/2011 - Nihlus K.
Jumping at Shadows
by Cyclone reviews
First contact between the United Earth Alliance and the Minbari Federation goes horribly wrong.
Crossover - Babylon 5 & Robotech/Macross - Rated: T - English - Sci-Fi/Drama - Chapters: 12 - Words: 34,477 - Reviews: 142 - Favs: 245 - Follows: 236 - Updated: 7/5/2012 - Published: 6/4/2011
Against OverReligious Cousins
by Robo Reader 21 reviews
Macross/nBSG AU. Set 20 months before the fall. The twelve colonies of Kobol start a war with Earth. Cylons are curious about the thirteenth tribe abilities. Both will learn their manners when dealing with the inheritor of the Protoculture.
Crossover - Robotech/Macross & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 26,942 - Reviews: 134 - Favs: 234 - Follows: 268 - Updated: 11/11/2011 - Published: 6/27/2010
We are not your thirteenth tribe: V2
by readerofgoodfanfiction reviews
This is a rewrite of 'We are not your thirteenth tribe' for I feel inspired thanks to my dear readers
Crossover - Robotech/Macross & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi - Chapters: 4 - Words: 13,237 - Reviews: 78 - Favs: 147 - Follows: 150 - Updated: 4/23/2011 - Published: 2/9/2011
SG1:The Robotech Chronicles
by readerofgoodfanfiction reviews
In the last Episode 'Unending' the Asgard Race was about to commit mass suicide after giving their 'Legacy' to SGC, then fate suddenly, brought three ships from another universe, and they brought the salvation of one race and hope to the Galaxy. SG-1/RT
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 4 - Words: 15,307 - Reviews: 71 - Favs: 186 - Follows: 198 - Updated: 11/25/2010 - Published: 9/23/2009
by FraserMage reviews
A Chance encounter with the Macross 22 Fleet results in Galactica's fleet encountering the Thirteenth Tribe. But what are these fighters turning into giant Cylons?
Crossover - Robotech/Macross & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 2,083 - Reviews: 28 - Favs: 58 - Follows: 79 - Published: 11/30/2009
by Arthur Hansen reviews
Battlestar Galactica NuBSG and Robotech, cleaned up and all in one location for all current sections. Currently abandoned by myself. The coauthor might pick it up.
Crossover - Robotech/Macross & Battlestar Galactica: 2003 - Rated: M - English - Drama/Angst - Chapters: 2 - Words: 61,388 - Reviews: 42 - Favs: 99 - Follows: 72 - Updated: 12/13/2006 - Published: 8/26/2006 - Complete