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The Unknown Defender
by Gabenator5 reviews
Whilst Shepard is closing in on Saren, rumors 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 and stop their raids on Defenseless Colony Settlements. Slaughtering every Single Attacker... and then Vanishing without a trace. Who or What is this... Thing.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 14 - Words: 90,345 - Reviews: 568 - Favs: 1,143 - Follows: 1,544 - Updated: 3/22 - Published: 9/27/2016 - Master Chief/John-117, Cortana, Shepard (F)
From Domination to Genocide V2
by InnocentBlaze686 reviews
4000 years before Darth Vader, there was Mandalore the Preserver, who mysteriously disappeared from the galaxy. With the death of Chancellor Palpatine during his attempted kidnapping, the Republic seeks a new advantage over the CIS, which comes in the form of the newly found Mandalore. But something draws the Jedi away from the Republic: the screams of those suffering genocide.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 27 - Words: 91,243 - Reviews: 87 - Favs: 111 - Follows: 139 - Updated: 3/22 - Published: 1/23/2016
Cycles Upon Cycles
by The Incredible Muffin reviews
The residents of the Koprulu Sector thought they had finally achieved peace. They were wrong. Now, the Koprulu Alliance is faced with a galaxy that was bigger than they thought. They will meet new friends, and more importantly, new enemies, but all will be forced to put away their hatreds, both old and new, or none will survive the darkness that is to come...
Crossover - StarCraft & Mass Effect - Rated: T - English - Sci-Fi/Supernatural - Chapters: 33 - Words: 336,967 - Reviews: 1118 - Favs: 1,491 - Follows: 1,685 - Updated: 3/21 - Published: 1/13/2015
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: 56 - Words: 486,773 - Reviews: 1147 - Favs: 1,376 - Follows: 1,512 - Updated: 3/20 - Published: 1/26/2014 - Shepard (M), OC
by TheSurvivorOfNightmares reviews
The story of Overwatch's newest addition. A young boy devastated by war and rescued by Overwatch will have a hard choice to make, join them and try to change things for the better, or fail trying. Not much of a choice right? Follow him and his friends from Overwatch as they try to fix this mess of a world. But as they do, what evils are conspiring behind them?
Overwatch - Rated: M - English - Adventure/Drama - Chapters: 22 - Words: 77,893 - Reviews: 67 - Favs: 99 - Follows: 152 - Updated: 3/20 - Published: 5/23/2016 - Amélie L./Widowmaker, Angela Z./Mercy, Lena O./Tracer, OC
by Ranschaj reviews
Emile survives the two zealots at the end of Reach, and after surviving Covenant onslaught, finds himself in the ME universe. Kick-ass picture is thanks to freejimmy on deviantart
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 10,660 - Reviews: 575 - Favs: 474 - Follows: 502 - Updated: 3/18 - Published: 12/11/2012 - Emile-A239/Noble Four
Rise of the Dragons
by Shadowmane2001 reviews
With a heart full of pain and hate toward elven kind from the second Thalmor War, the Dovahkiin prays to find a way to soften his heart and receives a vision of a land warped in chaos and violence. Prepared for this journey, Leonde uses the power of the Dragon Elder Scroll to bring him to a strange land, called Alaegeisa, and arrives in time to help in the Battle of Farthen Dur.
Crossover - Inheritance Cycle & Elder Scroll series - Rated: M - English - Adventure/Fantasy - Chapters: 22 - Words: 126,182 - Reviews: 330 - Favs: 500 - Follows: 608 - Updated: 3/18 - Published: 7/8/2014 - Eragon S., Arya, Murtagh, Dragonborn/Dovahkiin
Along Came A Spider
by free man writer reviews
"Ok How did I end up here?" Spiderman arrives in a new universe. like that's never happened before. But this time this universe is in dire need of a hero from a genocidal threat. "Well, like Uncle Ben Always told me. With Great Power, comes Great responsibility". Simple Summary don't need to say much. PeterXMiranda. There will be some AU with Spider-Man so just bare with me
Crossover - Spider-Man & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 21 - Words: 193,414 - Reviews: 547 - Favs: 577 - Follows: 653 - Updated: 3/15 - Published: 10/14/2014 - [Peter P./Spider-Man, Miranda L.] Shepard (M)
Return to Sender
by PoeticPillock reviews
The world could always use more heroes... Well, he could fit the bill. In the wastelands of the Western United States, a man known as the Courier, unfortunately, has become a sort of legend among Wastelanders. But what if he is no longer in the Mojave, and instead is in a world so strange yet so familiar? Will the Courier survive, or will he perish alongside this "Overwatch"?
Crossover - Fallout & Overwatch - Rated: M - English - Adventure/Drama - Chapters: 23 - Words: 127,059 - Reviews: 123 - Favs: 323 - Follows: 447 - Updated: 3/12 - Published: 9/9/2016 - Courier, Angela Z./Mercy, Winston, J. McCree
A Courier's Message
by Paladin Leroy reviews
While the savior of the Mojave wasteland wanders, reminiscing about the battle over Hoover Dam. He accidentally stumbles on an Enclave lab and gets sent to a world that has yet been scorched by nuclear fire. Will he learn from a world that seems like a utopia compared to his? Or will the heroes of this world learn from him? AN(First story I have ever written, review and comment)
Crossover - Fallout & Overwatch - Rated: M - English - Adventure/Sci-Fi - Chapters: 25 - Words: 86,544 - Reviews: 69 - Favs: 80 - Follows: 102 - Updated: 3/12 - Published: 9/8/2016 - Courier, Lena O./Tracer, Winston
The Lone Wolf Of The Normandy
by SSJ Lone Wolf reviews
The Spartan-III Commando, Noble Six. After surviving Reach runs through a forerunner portal after receiving new Augmentations, Amour and Weapons and arrives on the colony of Eden Prime in 2183 CE. When the Geth are invading the Planet. The scum of the universe will soon learn why B312 is ranked as a Hyper Lethal Vector.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 79,970 - Reviews: 309 - Favs: 382 - Follows: 509 - Updated: 3/7 - Published: 8/9/2016 - SPARTAN-B312/Noble Six, Shepard (F)
Enduring the Flames of War
by Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the universe has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 16 - Words: 174,399 - Reviews: 678 - Favs: 1,261 - Follows: 1,675 - Updated: 3/6 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard (F)
Scarlet Witch and the Thirteen Dwarves
by Dr Matthattan reviews
Wanda Maximoff unexpectedly finds herself joining the Quest of Erebor. How will Middle-earth react to the Scarlet Witch as a powerful evil rises once more?
Crossover - Hobbit & Avengers - Rated: T - English - Adventure/Humor - Chapters: 21 - Words: 132,018 - Reviews: 344 - Favs: 186 - Follows: 203 - Updated: 3/5 - Published: 7/19/2016
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- 2
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 27 - Words: 294,244 - Reviews: 422 - Favs: 647 - Follows: 778 - Updated: 3/2 - Published: 3/1/2014
The Spartan Effect
by Gatekeeper333 reviews
Everyone's favorite Spartan is looking for a new purpose, lucky for him, the Commander his happy to oblige.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 25 - Words: 232,648 - Reviews: 903 - Favs: 1,441 - Follows: 1,849 - Updated: 2/28 - Published: 3/27/2011 - Master Chief/John-117, Tali'Zorah, Miranda L., Shepard (M)
by zrocker119 reviews
Alexander Carter was a normal man that lived a normal life. That is until he was hit and killed by a drunk driver. Now dead he is offered a chance by a powerful being to be a part of something much that he thought only existed in fiction. Mass Effect SI story with the MC starting out in DOOM 2016. Rating should be for obvious reasons. Pairings have been decided.
Crossover - Mass Effect & Doom - Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 49,208 - Reviews: 341 - Favs: 824 - Follows: 1,027 - Updated: 2/25 - Published: 6/25/2016 - Shepard (F), Miranda L., OC
by Beastrider9 reviews
All life on Earth had been consumed by Blacklight. With no Biomass to feed on, Blacklight had to evolve, adapt, and grow. Now a collective Council of Aliens discovers the existence of such a life form. How do the aliens see a form of life that is viral, how they deal with it, what are the consequences to the galaxy of such a race existing at all.
Crossover - Mass Effect & Prototype - Rated: M - English - Sci-Fi - Chapters: 46 - Words: 228,550 - Reviews: 2082 - Favs: 2,728 - Follows: 3,062 - Updated: 2/23 - Published: 8/8/2014
The Darkest Knight
by Metal4k reviews
A Guardian wakes up in a world he doesn't know, in a world not destroyed by war, but on the brink of it. He doesn't remember how he got there, but he knows one thing is certain. He is a Guardian, protector of Light and Humanity, so he will do whatever it takes to protect the world.
Crossover - Destiny & Overwatch - Rated: T - English - Adventure/Sci-Fi - Chapters: 12 - Words: 109,119 - Reviews: 341 - Favs: 595 - Follows: 798 - Updated: 2/18 - Published: 6/7/2016 - OC, Bastion, Lena O./Tracer, Winston
Light from another place
by demonicalfox777 reviews
Noble Six stayed behind to activate the slip space bomb instead of George, but was transported to the Destiny universe through a slip space anomaly. Now armed with a new team and new weapons he must aid in the fight against the dark for the light. OC cap has been reached. No longer accepting OC's for the time being. Maybe later or even in a spin off from this story. ON HIATUS
Crossover - Halo & Destiny - Rated: T - English - Chapters: 8 - Words: 42,461 - Reviews: 53 - Favs: 77 - Follows: 94 - Updated: 2/15 - Published: 9/15/2015
My Effect: Convergence
by Lanilen reviews
My disappointment with the original ending of Mass Effect 3 was, I think, shared by many. At the time I thought I had to do something about it. What I didn't expect was for my wish to be granted by being transplanted into the Mass Effect universe, where I had to fix an awful lot more than I expected. A phrase about writing a check and having to pay came to mind...
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 32 - Words: 247,091 - Reviews: 360 - Favs: 445 - Follows: 609 - Updated: 2/6 - Published: 1/18/2015 - Shepard (F), OC, Ashley W., Nihlus K.
My Effect: Divergence
by Lanilen reviews
Has your sense of direction ever gotten you into trouble? Mine's so bad that it's capable of breaking the laws of physics. Once, I went for a walk in New Zealand in 2014, and ended up on Mindoir during a batarian raid in 2170. Where I met someone. Self-insert (SI), cover by Pretend Fiction.
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 32 - Words: 257,097 - Reviews: 560 - Favs: 860 - Follows: 1,138 - Updated: 2/6 - Published: 1/18/2015 - Shepard (F), Shiala, Benezia, OC
by The Incredible Muffin reviews
Shepard had thought it was over. The Reapers were defeated, at the cost of her life. Or so she thought. Now, Shepard is faced with the unknown yet again. For the first time, she found herself missing the Reapers...
Crossover - Warhammer & Mass Effect - Rated: M - English - Fantasy/Suspense - Chapters: 23 - Words: 179,295 - Reviews: 556 - Favs: 587 - Follows: 731 - Updated: 2/1 - Published: 7/25/2015
Upon The Wings Of Eagles (v2)
by Solaris-Prime199 reviews
It is rare to find a Space Marine with a sense of Humor, but Sergeant Sigmund isn't just any Ultramarine. Set upon the Eve of Humanities greatest triumph over adversity. Within moments of completion of the Emperors greatest work. Sigmund and his men are cast from the Webway into a strange and new Galaxy. Plans within Plots abound. Set before the Horus Heresy. (Rewriten)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 2 - Words: 23,367 - Reviews: 24 - Favs: 97 - Follows: 145 - Published: 1/31
Upon the Wings of Eagles
by Solaris-Prime199 reviews
It is rare to find a Space Marine with a sense of Humor, but Sergeant Sigmund isn't just any Ultramarine. Set upon the Eve of Humanities greatest triumph over adversity. Within moments of completion of the Emperors greatest work. Sigmund and his men are cast from the Webway into a strange and new Galaxy. Plans within Plots abound. Set before the Horus Heresy. (OLD VERSION)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 19 - Words: 206,072 - Reviews: 306 - Favs: 379 - Follows: 438 - Updated: 1/31 - Published: 9/23/2013 - OC, Shepard (F)
by MintyFeet reviews
The year is 460 Freeport. The Systems Alliance, descendant of the Frontier Militia, finds itself confronted with First Contact; in the midst of all this, Pilot Jane Shepard and Titan KN-6D1687 ("Kenneth") must navigate through this new galaxy. [Updates regularly on Spacebattles.]
Crossover - Mass Effect & Titanfall - Rated: M - English - Sci-Fi - Chapters: 12 - Words: 30,178 - Reviews: 12 - Favs: 97 - Follows: 155 - Updated: 1/27 - Published: 12/12/2016
The Infinity Effect
by creamofwheat2311 reviews
After discovering a Precursor artifact, the UNSC Infinity and the Sangheili Shadow of Intent are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined: the Reapers. Alliances are founded, friendships are formed, and decisions are made that will change this galaxy forever. On temporary hiatus.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 32 - Words: 301,976 - Reviews: 2540 - Favs: 2,768 - Follows: 3,361 - Updated: 1/20 - Published: 10/9/2013 - Master Chief/John-117, T. Lasky, Admiral Hackett, Shepard (M)
by deathwing17 reviews
After preventing a Chaos warband from summoning a vast army onto an Imperial world, an Inquisitor in training is hurtled through the warp and finds himself in a strange new world, one in which there are people with incredible abilities. Soon he will find himself fighting a familiar enemy and in order to save mankind he will need to cast aside old prejudices.
Crossover - Warhammer & Young Justice - Rated: M - English - Sci-Fi/Horror - Chapters: 14 - Words: 108,862 - Reviews: 224 - Favs: 296 - Follows: 361 - Updated: 1/16 - Published: 4/17/2014 - Inquisition, Megan M./Miss Martian, Richard G./Robin
The Lost Primarchs
by dorawarrior reviews
"They are lost to us forever" - Malcador the Sigilite. Shrouded in mystery, lost to history, whispers of heresy. This is the tale of the Lost Ones, remembered only by the Emperor.
Warhammer - Rated: T - English - Sci-Fi/Drama - Chapters: 57 - Words: 159,282 - Reviews: 236 - Favs: 244 - Follows: 290 - Updated: 1/15 - Published: 8/28/2013 - Fulgrim, Space Marines, The Emperor, OC
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: 6 - Words: 67,803 - Reviews: 289 - Favs: 840 - Follows: 1,172 - Updated: 1/9 - Published: 3/29/2016
Surviving a World of Fiction
by TREBOR117 reviews
I started a new game, only to end up inside that game instead. Now, I must survive a world meant to be fiction. I must use my knowledge to save this universe, and make sure Shepard prevails. But Saren was only the beginning, and there may be a threat far worse then the Collectors or their masters. A threat that I might not be ready for. The real question is: are they ready for me?
Mass Effect - Rated: T - English - Humor/Suspense - Chapters: 100 - Words: 534,364 - Reviews: 808 - Favs: 603 - Follows: 755 - Updated: 1/9 - Published: 8/17/2014 - Shepard (F), OC, Miranda L., Kasumi G.
When Destiny burns
by Masterdude21 reviews
After an UNSC fleet fell prey to an ancient Forerunner scheme, a lone Spartan is left stranded in a world that he doesn't understand. He gets himself inadvertently bonded to a dragon, marking him as a pawn in a new conflict. He must fight for his life and overcome his own nature to gain allies in a world where nothing makes sense. But war always catches on, burning all it touches.
Crossover - Halo & Inheritance Cycle - Rated: M - English - Sci-Fi/Fantasy - Chapters: 49 - Words: 566,587 - Reviews: 1230 - Favs: 575 - Follows: 606 - Updated: 1/9 - Published: 4/16/2014 - OC, Eragon S., Arya
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: 19 - Words: 190,515 - Reviews: 1240 - Favs: 1,936 - Follows: 2,372 - Updated: 12/31/2016 - Published: 1/26/2014
The Sum of Our Parts
by Nemesis13 reviews
The Institute, the Brotherhood, the Minutemen, they all became one under her guidance. As humanity healed the Mother Earth they so nearly killed they stretched their hands to the skies above and beyond, hoping for more. Humanity had been brought to its knees by their own hubris, they had seen the blood on the walls, it was time for the future. It was time for THEIR future.
Crossover - Fallout & Mass Effect - Rated: M - English - Sci-Fi/Humor - Chapters: 6 - Words: 8,869 - Reviews: 219 - Favs: 389 - Follows: 570 - Updated: 12/31/2016 - Published: 6/25/2016
The Avengers The Clone Wars
by free man writer reviews
A year after Ultron, the Avengers continue the vanguard of Earth. but when a mission goes array, Earth's Mightiest Heroes find themselves in a galaxy far far away, divided by war, good and evil, light and dark, Jedi and Sith. when they make their arrival, everything changes as the galaxy gets a taste of true heroism. AVENGERS ASSEMBLE. AU MCU and Star Wars
Crossover - Star Wars & Avengers - Rated: M - English - Adventure - Chapters: 4 - Words: 28,598 - Reviews: 34 - Favs: 74 - Follows: 79 - Updated: 12/30/2016 - Published: 12/4/2016
Welcome to the New Family
by TheRev28 reviews
Saren is dead. Shepard is dead. But when she comes back, Ian and I will be waiting. Let's see the Omega 4 relay try to stop us...assuming we even make it that far. Sequel to Welcome to the Family. Rated T for language.
Mass Effect - Rated: T - English - Adventure/Romance - Chapters: 33 - Words: 152,175 - Reviews: 869 - Favs: 496 - Follows: 633 - Updated: 12/30/2016 - Published: 5/4/2012 - [Shepard (F), OC] Garrus V., Kaidan A.
by A Very Thirsty Megalomaniac reviews
The UED is here. Magnificent and relentless, they march forward in defiance of the watching darkness. On the edges, the only person with both the knowledge and means to stop what's coming remains wracked with doubt, at war with her nature. Jim Raynor, meanwhile, struggles onward in a galaxy that has outgrown him. Sequel to Sudden Contact. Complete.
Crossover - StarCraft & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 66 - Words: 453,700 - Reviews: 770 - Favs: 331 - Follows: 317 - Updated: 12/28/2016 - Published: 11/3/2015 - Samir D., Tychus F., D. Anderson, Mordin S. - Complete
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: 31 - Words: 292,418 - Reviews: 1061 - Favs: 2,584 - Follows: 3,039 - Updated: 12/26/2016 - Published: 7/19/2014 - U. Wrex, Daro'Xen, Shepard (F), OC
Fate: Heroes of Justice
by The Undying Will reviews
Fate is a fickle thing. With victory in their grasp during the end of the fifth Grail War, only for it to slip through their fingers, Shirou and Saber must now adapt to a world filled with beings of power and skill. They may not be in their own world but this one could always have more heroes. On Hiatus. Will be continued in 2017 due to difficulties. Christmas Special is posted!
Crossover - Fate/stay night & Young Justice - Rated: T - English - Chapters: 9 - Words: 31,460 - Reviews: 174 - Favs: 495 - Follows: 623 - Updated: 12/23/2016 - Published: 7/8/2016 - [Shirō E., Arturia Pendragon] Wally W./Kid Flash, Kent N./Doctor Fate
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: 109 - Words: 790,442 - Reviews: 3201 - Favs: 1,978 - Follows: 1,822 - Updated: 12/19/2016 - Published: 5/17/2012
Masses to Masses: Redux
by iNf3ctioNz reviews
The year is 2181; two years before the events of the Mass Effect trilogy, a chance encounter on our Earth leads a rash, young student to a job in C-Sec's contraband division. Ian Shaw will have to face the worst of the Citadel's criminal underbelly, all while trying to piece together a new life, a way home, and an unlikely partnership with a turian he knows far too much about.
Mass Effect - Rated: T - English - Crime/Adventure - Chapters: 4 - Words: 11,711 - Reviews: 70 - Favs: 98 - Follows: 152 - Updated: 12/17/2016 - Published: 11/1/2016 - Garrus V., Executor Pallin
Son of Light
by Fyiad reviews
Attacked by Vex and sent to a place far away from the Traveler, the Warlock Odin must find a way to survive in a galaxy that is strange and unfamiliar. New servants of Darkness threaten him, but with his Light and his space magic he will find a way. Well, that and bullets. Lots and lots of bullets.
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Sci-Fi - Chapters: 10 - Words: 65,652 - Reviews: 270 - Favs: 760 - Follows: 955 - Updated: 12/7/2016 - Published: 6/12/2015
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: 324 - Favs: 891 - Follows: 1,109 - Updated: 11/26/2016 - Published: 3/2/2015 - Cortana, Shepard (F)
by Eagle9177 reviews
An accident sends the Lord of the Sith into the Mass Effect universe. He is discovered by the newly resurrected commander Jane Shepard. Just how will Revan affect her mission? Her life? And the Mass Effect galaxy as a whole? A telling of Revan and Shepard's journey through the events of ME 2 and 3. Rated M for language, Violence and adult situations. (Art work is copyrighted)
Crossover - Star Wars & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 36 - Words: 226,574 - Reviews: 1443 - Favs: 2,785 - Follows: 3,238 - Updated: 10/30/2016 - Published: 11/19/2013 - Revan, Shepard (F), Garrus V., Miranda L.
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: 914 - Favs: 936 - Follows: 991 - Updated: 9/30/2016 - Published: 11/1/2012 - Luke S., G. Marek/Starkiller, T. Lasky - Complete
UNSC OPERATION: ORESTES LIBERATION
by SmokeTinyTom reviews
UNSC OPERATION: ORESTES' LIBERATION details the extraordinary exploits of the UNSC's efforts during the Titan War on the Imperial Forge World of Orestes and how their actions effected the Sabbat Worlds Crusade and the Imperium as a whole. A/N: This is working in conjunction with my UNSC Codex: Vehicles and Equipment. [UPDATE: Chapter 6 IS UPDATED] [I'm Coming BACK to this!]
Crossover - Warhammer & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 20,270 - Reviews: 24 - Favs: 27 - Follows: 39 - Updated: 9/25/2016 - Published: 9/20/2015 - Imperial Guard, Space Marines, Emile-A239/Noble Four, OC
The Gathering Darkness
by TheLastEidolon reviews
The Council races stumble upon the Sol system and its occupants. Amidst trying to decipher the...unusual technology employed by the humans, they learn that the denizens of Earth are fighting a desperate war against an enemy so powerful, even the combined might of the Council's armies may not be enough to defeat it...
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 43,407 - Reviews: 180 - Favs: 703 - Follows: 937 - Updated: 9/6/2016 - Published: 7/10/2015 - Garrus V., Liara T'Soni, U. Wrex, Tali'Zorah
The Last Lion
by Shaneman17 reviews
When Overwatch was disbanded, the world lost its greatest protectors. With its reformation, it now faces a threat that lurks in the shadows and has their eyes set on them. Even with all the evil in the world, their is a version of Earth that has suffered far worse. A Earth that burned in nuclear fire. Maybe what they need is a hero from this dead world, a simple lone wanderer.
Crossover - Fallout & Overwatch - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 2,028 - Reviews: 12 - Favs: 64 - Follows: 95 - Published: 8/29/2016 - Lone Wanderer, Bastion, Fareeha A./Pharah, Reinhardt W.
by The Incredible Muffin reviews
When the Outcast Blades and their allies attack a top-secret Imperial project, they are unprepared for the consequences. Now, they must survive in a new galaxy, with new friends and enemies alike. Can the Blades show another galaxy that they're the best, or will the Reapers harvest them as well?
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 25 - Words: 220,721 - Reviews: 439 - Favs: 468 - Follows: 472 - Updated: 8/24/2016 - Published: 7/6/2014 - OC - Complete
The Resurrection Effect
by Twisted Platypus reviews
Two years have passed and the Collectors are here. The Reapers grow closer with each and every day and the galaxy balances on the brink of war. Tensions rise as entire colonies vanish without trace, hidden forces slowly tightening their grip. Even with Commander Shepard brought back to life, is there any chance of victory against a ruthless foe bent on galactic extinction?
Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 3 - Words: 24,946 - Reviews: 43 - Favs: 157 - Follows: 215 - Updated: 7/26/2016 - Published: 12/14/2015
Chains of the Kindred
by Solvdrage reviews
A HaloWarhammer 40K crossover. Two besieged branches of Humanity, separated by time and space have been reunited. And there is only War!
Crossover - Warhammer & Halo - Rated: T - English - Chapters: 23 - Words: 155,118 - Reviews: 439 - Favs: 655 - Follows: 646 - Updated: 7/26/2016 - Published: 7/24/2007
The Venvax Incident
by macko123456 reviews
The galaxy is at peace. In the millennia since the Emperor defeated the Chaos Gods and united a million worlds under the banner of mankind, much has been achieved. But now the Imperium's relations with its alien allies will be tested like never before as a new threat emerges. For in the bright and hopeful future of the 41st Millennium, there is no war . . . not yet, anyway.
Warhammer - Rated: T - English - Sci-Fi/Drama - Chapters: 5 - Words: 11,129 - Reviews: 6 - Favs: 14 - Follows: 21 - Updated: 6/29/2016 - Published: 6/20/2016 - Eldar, Space Marines, Tyranids, Tau
by A Very Thirsty Megalomaniac reviews
At the dawn of the Great War, first contact was made between the protoss, imperious firstborn of the xel'naga, and the turians, proud militarists. As the galaxy catches fire at this sudden conflict, unlikely alliances are formed while ancient directives are carried out by the oldest minds in the Milky Way. The Koprulu sector has opened, and the zerg are loose. Now complete!
Crossover - StarCraft & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 43 - Words: 235,523 - Reviews: 719 - Favs: 554 - Follows: 446 - Updated: 6/26/2016 - Published: 2/9/2015 - James R., Tassadar, Alexei S., Primarch Adrien Victus - Complete
Out of Space and Time
by sheraiah reviews
The Tesseract and the Bifrost aren't the only ways by which to travel between the worlds, and there are more worlds than Thor has spoken of. When one of the pathways goes awry, the Avengers are called in to clean up the resulting mess.
Crossover - Lord of the Rings & Avengers - Rated: T - English - Adventure/Humor - Chapters: 11 - Words: 52,840 - Reviews: 216 - Favs: 421 - Follows: 569 - Updated: 6/4/2016 - Published: 11/27/2012 - Legolas, Iron Man/Tony S.
by Chaoswind2 reviews
First part of a three part project: The Great war was finally over, with the Covenant and the Flood defeated there were no enemies left to fight, mankind could finally take a breath and enjoy the peace they had earned after twenty seven years of a war that had claimed twenty three billion lives. Or so they hoped. But the galaxy has never been that kind.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 39,222 - Reviews: 63 - Favs: 164 - Follows: 214 - Updated: 5/26/2016 - Published: 6/20/2013 - Master Chief/John-117, Cortana
Mass Effect: Clash of Civilizations
by Eterna1Soldier reviews
In 2157 a Citadel Council exploratory vessel is tasked with opening a dormant Relay into unknown regions of the galaxy. What they find is something they never expected. What happens when two civilizations centered around different technologies clash?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Mystery - Chapters: 21 - Words: 96,812 - Reviews: 3220 - Favs: 4,307 - Follows: 5,095 - Updated: 5/22/2016 - Published: 10/13/2011 - Tali'Zorah
The Mission Stays the Same
by Broken Trident reviews
A joke of Chaos daemon sent two unlikely allies - an Eldar Farseer and an Imperial Storm trooper, through the Warp and into another Universe. In this place, everything is alien to them. Except for one thing - war. War is something they know very well.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 20 - Words: 266,815 - Reviews: 1779 - Favs: 2,879 - Follows: 3,121 - Updated: 4/25/2016 - Published: 10/4/2011 - Shepard (F)
When Civilizations Meet
by Generatedname reviews
The Ethereals, the Aquatoids, the Micronoids. Humanity has faced them all, and come out stronger. The Humans have left their world, exploring the stars, their technology built on Alien corpses. How will they react when they meet a peaceful society, one that is both advanced and primitive? ABANDONED, REWRITE IS UP UNDER THE TITLE 'THE HUMAN WAR!
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 52,325 - Reviews: 329 - Favs: 702 - Follows: 832 - Updated: 3/29/2016 - Published: 5/11/2014 - OC
by soran51 reviews
I will always place the mission first, I will never accept defeat, I will never quit, I will never leave a fallen comrade. Jason Shaw knew it was the end when he saw that grenade come through the window. Given a second chance as an immortal warrior he'll have to keep Commander Shepard alive, because failure is absolutely not an option. Now if only she'd learn to keep her head down.
Crossover - Mass Effect & Destiny - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 42,212 - Reviews: 126 - Favs: 320 - Follows: 432 - Updated: 3/14/2016 - Published: 1/18/2015 - Shepard (F), Ghost, OC
Alternate Past, Uncertain Future Mk II
by Follower38 reviews
Co-written with aDarkOne History, a single event, can alter so much, let alone two. The San'Shyum are no more. The Krogan Empire stands strong. Humanity is now a giant among the stars. With three Galactic Superpowers in play, will an encounter see a new Golden Age, or an Era of War? (Chapters 1-12 being rewritten)
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 32 - Words: 279,514 - Reviews: 710 - Favs: 625 - Follows: 753 - Updated: 3/10/2016 - Published: 8/28/2012
Halo: the Art of War
by Havoc-legionnaire reviews
AU. One small divergence, the smallest of errors, and the balance of fate tips. It is 2552. Reach is spared, for now. Operation Red Flag goes forth. The Covenant will learn that this war that they have started 27 years ago have only just begun.
Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 35 - Words: 181,676 - Reviews: 822 - Favs: 1,121 - Follows: 1,155 - Updated: 2/27/2016 - Published: 10/2/2010 - Master Chief/John-117, Prophet of Truth
The Star Forge Effect
by Llegion reviews
Darth Revan leads the Sith Empire to a new galaxy, bringing with him the greatest space station in the galaxy. What will happen when the Council meets an Empire that refuses to bow to them, with the military strength to reduce them into so much dust? And how will their First Contact go, considering who the Empire is allied with? Rated T for HK-47, you meat-bags.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 17,921 - Reviews: 176 - Favs: 690 - Follows: 952 - Updated: 1/22/2016 - Published: 9/21/2015
HaloMass Effect: Ruptured Universe (Cancelled)
by JediSpectre177 reviews
Multiple crossovers AvP,RvB, JC's Avatar, Star wars, Halo, Mass Effect and more. Authors 2nd apology and Cancellation on chapter 14
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 160,561 - Reviews: 663 - Favs: 446 - Follows: 453 - Updated: 1/20/2016 - Published: 4/16/2012 - Master Chief/John-117
The Fighting Spirit
by smart grid reviews
Spartans never die, they say. When Jorge gave his life to save his home planet of Reach, he never imagined that he would survive. But now he finds himself neck deep in the troubles of another universe; he will do what he has been trained to do, what all Spartans do best: fight.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 39 - Words: 176,016 - Reviews: 716 - Favs: 985 - Follows: 1,110 - Updated: 1/16/2016 - Published: 12/1/2011 - Jorge-052/Noble Five, Shepard (F) - Complete
Burc'ya vaal burk'yc, burc'ya veman
by Ordo Warrior reviews
Continuation of The Commandos of Mass Effect. War is upon the galaxy. Can Mandalorian intervention help stop galactic annihilation or are they doomed to join them?
Crossover - Star Wars & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 61 - Words: 202,220 - Reviews: 194 - Favs: 134 - Follows: 132 - Updated: 1/8/2016 - Published: 11/19/2012 - OC - Complete
by OrangeSquad reviews
A small fleet of UNSC ships and a large fleet of Covenant ships end up in a galaxy faf far away due to a slipspace anomally, both factions form an unlikly alliance after ending up in the middle of the Clone Wars.
Crossover - Halo & Star Wars - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 16,658 - Reviews: 18 - Favs: 53 - Follows: 64 - Updated: 12/28/2015 - Published: 12/28/2009
by Spiritstrike reviews
My life couldn't have been more boring than it already was. But no, something had to happen and now I'm in the middle of a warzone with nothing but my wits, a sniper, and my knowledge of what is to come. I better start preparing to bunker down in someone's basement, or... maybe I can do something about it? This isn't a video game anymore, it's fucking real!
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 19 - Words: 112,140 - Reviews: 130 - Favs: 125 - Follows: 199 - Updated: 10/25/2015 - Published: 11/23/2013 - Garrus V., Liara T'Soni, U. Wrex, Shepard (M)
Return of the Avengers
by Dr Matthattan reviews
A new shadow falls upon Middle-earth. The Free Peoples and the Avengers join forces once more to stand against a darkness that threatens to engulf all who oppose it. Sequel to 'Avengers of the Ring'.
Crossover - Lord of the Rings & Avengers - Rated: T - English - Adventure/Humor - Chapters: 33 - Words: 199,912 - Reviews: 403 - Favs: 350 - Follows: 324 - Updated: 9/24/2015 - Published: 3/22/2014 - Complete
The Heavens Shall Tremble
by Full-Paragon reviews
Sequel to And the Meek Shall Inherit the Galaxy. On hiatus while author recovers from medical emergency.
Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 23 - Words: 95,248 - Reviews: 908 - Favs: 1,190 - Follows: 1,414 - Updated: 9/21/2015 - Published: 10/25/2013 - Garrus V., Liara T'Soni, Tali'Zorah, Shepard (M)
by TheHawk5476 reviews
After being stranded in the Halo Universe Steven 294 begins a new life in the Spartan III Programme. Now featuring the origins of Noble team!
Halo - Rated: K+ - English - Adventure - Chapters: 46 - Words: 87,670 - Reviews: 136 - Favs: 70 - Follows: 80 - Updated: 9/6/2015 - Published: 5/27/2012 - Carter-A259/Noble One, Catherine-B320/Kat/Noble Two
The Technological Assimilators
by Knight in Blackest Armor reviews
With the technologies of several alien races at its disposal, humanity had undergone a technological revolution. It advanced at such a rapid pace, far exceeding many expectations. Soon however, the humans learned that they shared their galaxy with yet another group of sentient alien life, but to mankind's horror and confusion, these aliens were not the sort they expected at all.
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 147,111 - Reviews: 213 - Favs: 726 - Follows: 1,003 - Updated: 9/5/2015 - Published: 3/20/2014
Fallout: Wild Cards
by Vergil.exe reviews
So a Courier, an Eyebot, and a Deathclaw walk into a casino...
Fallout - Rated: M - English - Sci-Fi/Humor - Chapters: 11 - Words: 13,980 - Reviews: 9 - Favs: 14 - Follows: 11 - Updated: 8/27/2015 - Published: 6/7/2015 - [Courier, Goris] Lone Wanderer, ED-E - Complete
Into the Void
by Kenneth Whit3 reviews
When the Long Night of Solace was destroyed by the most advanced piece of equipment ever jury-rigged by man, it took one of the last Spartan-II's with it. On the other side of that void, Jorge-052 found an unfamiliar universe and a terrifying new enemy, but Commander Shepard found a powerful ally and a new hope for humanity.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 19 - Words: 63,444 - Reviews: 160 - Favs: 336 - Follows: 475 - Updated: 8/19/2015 - Published: 2/19/2014 - Jorge-052/Noble Five, Illusive Man, Harbinger, Shepard (M)
A Little Old Fashioned
by Archer83 reviews
Captain Steve Rogers thought his last sacrificial act would be to save a country from destruction. He was wrong. Thanks to the selfless acts of a few, he will be given the chance to prevent the annihilation of an entire galaxy. Welcome to 2185, Mr. Rogers.
Crossover - Mass Effect & Captain America - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 55,576 - Reviews: 94 - Favs: 260 - Follows: 371 - Updated: 8/5/2015 - Published: 10/23/2013 - Shepard (F), Steve R./Capt. America
Death Korps of Justice
by Lord-of-Change reviews
A young Death Korp soldier, in a battle with a follower of Chaos, ends up swallowed by the Warp. By a stroke of luck, he's sent to Earth, to a world without an Emperor, to a world where villains and heroes battle it out across the globe. With no Emperor to serve and no war to fight, this young soldier must struggle to find his own path in a world that challenges all his beliefs.
Crossover - Warhammer & Young Justice - Rated: M - English - Sci-Fi/Adventure - Chapters: 26 - Words: 242,589 - Reviews: 947 - Favs: 765 - Follows: 788 - Updated: 7/21/2015 - Published: 7/21/2013 - Imperial Guard, Deathstroke
Conquerors they Rise
by JoeTheHighlord reviews
The year is 2650, nearly a century since the end of the Great War and the fall of the Covenant Hegemony. In that time great advances have been made in both technology and society, and the new government of the New Species Alliance enters a golden age. But, there are dark stirrings out in the vastness of space and soon Conquerors must rise again from the ashes of war.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 13 - Words: 74,202 - Reviews: 415 - Favs: 663 - Follows: 852 - Updated: 7/2/2015 - Published: 7/16/2013 - T. Hood
UNSC: Pheonix Rising
by Deathwatch Razgriz reviews
What if the UNSC was far more powerful? What if due to an accident the UNSC gained power in the 1960s? Due to these two simple facts the Salvation of 3 dimensions has begun.
Crossover - Warhammer & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 35 - Words: 56,153 - Reviews: 315 - Favs: 171 - Follows: 171 - Updated: 6/25/2015 - Published: 8/13/2011 - Complete
Masses to Masses 4
by iNf3ctioNz reviews
Entire colonies are disappearing. The only thing standing between humanity and the Collectors are an extremist organisation and a once dead Spectre. Ian Shaw may have survived Omega, but as a suicide mission looms and old faces emerge, he's about to find the future he thought he knew may no longer be so certain. And that the past is never far behind. Cover by GeneralHarryHousin.
Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 10 - Words: 83,002 - Reviews: 595 - Favs: 703 - Follows: 868 - Updated: 5/26/2015 - Published: 2/4/2013 - Shepard (F), Garrus V., Thane K., Kasumi G.
by Macx reviews
Jurassic World: Owen Grady had always had a talent for animals. It ran in the family. Masrani Global recruited him to train raptors. It was a novel idea, something only a crazy or insane person would attempt. Owen wasn't crazy or insane. He knew he could do this, though his grandfather had always warned him: don't get too close. Don't let them connect. Well, too late. Way too late.
Jurassic Park - Rated: T - English - Adventure/Suspense - Chapters: 40 - Words: 105,925 - Reviews: 331 - Favs: 1,294 - Follows: 492 - Updated: 5/22/2015 - Published: 2/21/2015 - Owen, Velociraptor, A. Grant - Complete
The Grub killer
by icegod030 reviews
in the aftermath of the battle with queen Myrrah Carmine finds himself with baird checking adam fenix's feild notes and tech only to find himself being somehow injected into a new reality that isnt his own...will he ever see his family or fellow gears again? what will shepard do with this blue giant of mass destruction pairings Clay/sam Shepard/OC (on hiatus)
Crossover - Gears of War & Mass Effect - Rated: M - English - Chapters: 16 - Words: 69,575 - Reviews: 83 - Favs: 170 - Follows: 149 - Updated: 4/30/2015 - Published: 9/18/2012 - C. Carmine, Shepard (F)
by Doctor Life MD reviews
The Great War has ended and Humanity survived. Peace has set over the Orion Arm of the Galaxy. Battlegroup Foxtrot and its commanding officers - Captain John Sandman and Commander Chris C-333 - have been tasked with enforcing peace, but later on, their lives change when they are ordered to explore a completely different universe. M for violence and sexual content.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 24 - Words: 116,063 - Reviews: 57 - Favs: 135 - Follows: 127 - Updated: 4/25/2015 - Published: 8/16/2013 - Arbiter, T. Hood, OC, Admiral Hackett
Once Bitten, Twice Shy
by Varigos D. Vastitas reviews
Unwittingly uplifted beyond expectation by their foes, humanity not only destroyed their aggressors, but surpassed them and made their way to the stars. As Humanity expands from the Earth will they find their place in the galaxy, or will ghosts from the past come back to haunt them? (Co-writer NathanHale2.)
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 19 - Words: 122,522 - Reviews: 611 - Favs: 986 - Follows: 1,213 - Updated: 3/9/2015 - Published: 3/15/2014 - D. Anderson, Illusive Man, Councilor Tevos, Councilor Sparatus
Reflection in Steel
by Commissar Rasher reviews
The UNSC Wotan is the finest ship ever built by human hands. But now its crew faces the greatest challenge of their lives. Trapped in a strange land, they must survive and try to find a way home in a dark galaxy where there is only war.
Crossover - Warhammer & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 68,237 - Reviews: 105 - Favs: 221 - Follows: 296 - Updated: 2/26/2015 - Published: 12/26/2013
by Andrithir reviews
There are stories about them, myths and legends of once majestic species overseeing the galaxy and exploring into the space that lay beyond. There were stories about them, tales of faded past. Humanity's missing link. (Rewrite Chapters 1 to 3 now posted) COMPLETED. Rewrites are on hiatus.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 67 - Words: 328,897 - Reviews: 1611 - Favs: 1,250 - Follows: 1,197 - Updated: 2/20/2015 - Published: 10/8/2011 - Master Chief/John-117, Shepard (F) - Complete
Noble Spartans, Noble Heroes
by free man writer reviews
A new team arrives in the Marvel universe. as they arrive new and more large scale plans begin to unfold from both universes, pushing this team to new breaking points. will they hold on or is this their final mission as Spartans. Dark World Arc right now, next up, Winter Soldier. Oh and skip ahead to Chapter 8 to really get to the exciting parts of this crossover
Crossover - Marvel & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 18 - Words: 253,059 - Reviews: 384 - Favs: 416 - Follows: 398 - Updated: 2/19/2015 - Published: 2/21/2013 - Master Chief/John-117, Cortana, Carter-A259/Noble One, SPARTAN-B312/Noble Six
In Infinitum: First Contact
by Victor Weiss reviews
In the year of 2581 the UNSC stumbles across a discovery hidden beneath their noses and now a new gateway to life outside of the Forerunner space is opened and with it comes all new challenges and rewards. Its time for First Contact. OC centric, some world building as needed and war. Lots and lots of war. Rated T for blood, language, violence and gore.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 27 - Words: 149,945 - Reviews: 935 - Favs: 1,045 - Follows: 1,351 - Updated: 1/23/2015 - Published: 9/19/2013
The Onyx Stars
by The Hidden Sith reviews
A lost ship, a lost warrior, and a lost mind find themselves stranded in an unknown world. Full of vast wonders, threats, and opportunities, this new world is an unknown element for a crew accustomed to war and hardship. But, all Edens fall and beyond the embers of war lay the dawn of victory. Halo/Mass Effect AU John/Cortana, Lasky/Palmer
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 16 - Words: 143,775 - Reviews: 468 - Favs: 725 - Follows: 869 - Updated: 1/22/2015 - Published: 12/9/2012 - Master Chief/John-117
by Ehanu Rehu reviews
The universe is a big place. Thousands of light-years still awaiting exploration, keeping secrets unknown to the rest of Council space. The Reapers were proof of that, as much as the Council is loathe to admit it. But there are yet secrets that even the Reapers, or their masters, the Leviathans know about. Even the apex races can be surprised. UNDER HIATUS
Crossover - Halo & Mass Effect - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 8 - Words: 23,856 - Reviews: 144 - Favs: 274 - Follows: 437 - Updated: 1/20/2015 - Published: 12/24/2013 - Master Chief/John-117, Arbiter, Garrus V., Shepard (M)
by Palladius reviews
The Ethereal assault on Earth was foiled by Colonel Jane Shepard. The Temple Ship taken intact, XCOM gained the capability to strike back against the Ethereals. However, Humans weren't the only species the Ethereals had set their sights on. For they were determined to make this cycle different.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi/Family - Chapters: 38 - Words: 161,748 - Reviews: 996 - Favs: 1,004 - Follows: 1,137 - Updated: 1/17/2015 - Published: 10/3/2013 - Shepard (F), U. Wrex, Tali'Zorah, Admiral Hackett
HALO: The Andromeda War
by UH-60 NIGHTSTALKER reviews
Takes place 20 years after the first story. War drums are starting to sound once again and soon, the final battle to detremine the fate of Adromeda shall begin.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 47 - Words: 191,096 - Reviews: 1246 - Favs: 713 - Follows: 637 - Updated: 1/1/2015 - Published: 2/27/2013 - Complete
A Clashing of Ways
by Avid Reader403 reviews
Ten years have passed since the Human-Covenant War ended and the birth of the Species Assembly has brought peace to the Galaxy. Or, at least their part of it. The discovery of a Mass Relay sparks yet another war that will have consequences for all sides involved. The Galaxy will never be the same. Disclaimer: I do not own the franchises.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 13 - Words: 42,422 - Reviews: 606 - Favs: 1,102 - Follows: 1,412 - Updated: 12/25/2014 - Published: 9/20/2012 - Shepard (M)
Inheritance: The Mantel's Challenge
by Reaper VF6 reviews
It has been 40 years since the Great War ended the UNSC has faced and defeated numerous threats. They are the inheritors of the Mantel and the Forerunners have challenged them to claim. Set in Mass Effect 1, it shows the UNSC reconciling with the Systems Alliance, the Citadel Council, and the Reapers as the UNSC and its Allies, the Imperium try to claim and uphold the Mantel.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 45,059 - Reviews: 111 - Favs: 273 - Follows: 339 - Updated: 12/11/2014 - Published: 9/14/2013 - OC, Master Chief/John-117, Admiral Hackett, Shepard (M)
by TheTrollDude reviews
Multi Universe Crossover. The power-hungry universes of Skyrim, Halo, and Mass Effect come together in a massive power struggle for control spanning multiple galaxies, and beyond. Little do they know *something* has awaken from it's sleep. Something hungry for revenge. Doing a complet rewrite.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 3,254 - Reviews: 18 - Favs: 30 - Follows: 38 - Updated: 12/4/2014 - Published: 4/21/2014 - Master Chief/John-117, T. Hood, OC, Shepard (M)
The Spirit of Redemption
by Myetel reviews
The Spectres fight against threats to both the galaxy and their families on Mindoir. Shepard/Garrus, multiple OCs, largely expanded universe. Includes Redemption, Hunt, Unity, and Victory.
Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 162 - Words: 3,404,794 - Reviews: 2023 - Favs: 726 - Follows: 420 - Updated: 10/14/2014 - Published: 2/11/2011 - Garrus V., Shepard (F) - Complete
What Makes Humans So Strange?
by Talos1988 reviews
Shepard is not truly human. She struggles with her nature and those around her. She wants to learn how to be human - but is this the right path for her? AU Mass Effect/StarCraft crossover - more details inside (I do suck at these things...) Rated M due to strong language, adult themes and strong violence.
Crossover - StarCraft & Mass Effect - Rated: M - English - Sci-Fi/Hurt/Comfort - Chapters: 7 - Words: 61,391 - Reviews: 107 - Favs: 343 - Follows: 470 - Updated: 10/11/2014 - Published: 6/30/2013 - Zerg, Shepard (F)
The Lost and the Damned
by Koronis reviews
Veldoran is the leader of the remnants of the warhost of Ulthwe sent to sub-sector Aurelia. Thrust into a conflict that spans both space and time, will he accept an unlikely alliance or walk alone into the darkness that is to come? AU Written b4 Retri
Crossover - Fallout & Warhammer - Rated: T - English - Adventure/Drama - Chapters: 28 - Words: 91,520 - Reviews: 94 - Favs: 110 - Follows: 135 - Updated: 10/2/2014 - Published: 9/13/2011 - Lone Wanderer
SPARTAN: Deus ex Machine
by Vixen Tail reviews
Rebooted. AU Crossover. 343-Guilty Spark succeeded in activating the HALO Ring World despite the interference of the SPARTAN Master Chief and the AI Cortana. In a attempt to 'save' her SPARTANs, Dr. Halsey sends a total of 25 SPARTANs out into deep space, seventeen of which now survive as something else entirely.
Crossover - Halo & Transformers - Rated: M - English - Sci-Fi - Chapters: 35 - Words: 383,565 - Reviews: 322 - Favs: 274 - Follows: 233 - Updated: 9/25/2014 - Published: 7/12/2011
Balance or Nothing
by Sin of the Fallen reviews
"There must be balance...or nothing." When Ixis kills Alduin there is no longer a balance between them, so they are kicked out of Tamriel... Into Alagaesia. And they are bound together by destiny. In Alagaesia. Where bonds equal Dragon and Rider... For Annonimous4862. And go look at her awesome stuff!
Crossover - Inheritance Cycle & Elder Scroll series - Rated: T - English - Adventure/Supernatural - Chapters: 4 - Words: 9,244 - Reviews: 96 - Favs: 235 - Follows: 349 - Updated: 9/12/2014 - Published: 7/22/2013 - Eragon S., Saphira, Alduin, Dragonborn/Dovahkiin
Lord of the Rings: The Spartan Prophecy
by So-Pro Warrior reviews
It has been four years since the Battle of the Ark. The Forward Unto Dawn crash lands onto a unknown world and onboard the Dawn. The SPARTAN John-117 better known as Master Chief awakens from his sleep. He soon finds himself on a strange new world with only his old AI partner Cortana by his side. However he will soon discover that it was not chance that brought him here. But fate.
Crossover - Lord of the Rings & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 131,910 - Reviews: 200 - Favs: 356 - Follows: 262 - Updated: 9/6/2014 - Published: 4/7/2013 - Aragorn, Master Chief/John-117 - Complete
The Devil's Own
by Cain O'Phelan reviews
When a company of ODSTs drop on New Mombasa to reinforce the ground operations against the Covenant, they are caught in an inter-atmospheric Slipspace jump. Where that jump leads will take those men from notoriety, to legend.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 36,963 - Reviews: 152 - Favs: 331 - Follows: 423 - Updated: 9/1/2014 - Published: 5/16/2013 - Shepard (F)
Hard-drop between conflicts
by SrGracias1337 reviews
A Spartan IV wakes up after he drops from a crashing pelican as it's about to hit the ground, A hard-drop some would say but the worst part is the clash between his previous conflict and a new conflict on both the same and different planet. Can he handle fighting along with giant robots? Rated M for language and just to be sure.
Crossover - Halo & Transformers - Rated: M - English - Adventure/Sci-Fi - Chapters: 21 - Words: 50,505 - Reviews: 75 - Favs: 107 - Follows: 122 - Updated: 8/28/2014 - Published: 1/13/2013 - OC, Bumblebee, Arcee
Mass Effect X Halo Spartan Dawn
by Freedom Guard reviews
Yet another creation of mine to help ease my mind, I hope that everyone does not mind seeing this one. I know there are a lot of crossover with Mass Effect and Halo, but no sense not trying a bit of it in my free time. Story on Ice, Updating all NON Halo stories is priority now.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 233,980 - Reviews: 887 - Favs: 1,252 - Follows: 1,133 - Updated: 8/27/2014 - Published: 10/8/2010 - Master Chief/John-117
by Tansey56 reviews
Humanity has endured. The Human Covenant war is over, now the long task of rebuilding looms ahead. Fragile relations and strong bonds will be tested when unbelievable things are discovered. Can humanity endure once again? Pre-ME through ME3 AU!
Crossover - Halo & Mass Effect - Rated: K - English - Sci-Fi/Adventure - Chapters: 2 - Words: 2,337 - Reviews: 31 - Favs: 93 - Follows: 152 - Updated: 8/18/2014 - Published: 6/28/2013
by Follower38 reviews
'Long ago, man and the Orokin built an empire, a mighty nation that would last forever...now six hundred years after that empire's fall, a Council exploration vessel inadvertently awakens one of the last survivors of that golden age...and in doing so, become embroiled in a conflict that will see that empire reborn...or set the galaxy aflame.
Crossover - Mass Effect & Warframe - Rated: T - English - Adventure - Chapters: 12 - Words: 93,252 - Reviews: 137 - Favs: 301 - Follows: 291 - Updated: 8/14/2014 - Published: 7/7/2013 - Complete
by Xeno Major reviews
The Great Wars are over. Jim Raynor and his men have left the Koprulu Sector behind, choosing to settle a world away from that sector of space. Unfortunately, the colony of Shanxi is not safe; hostile aliens have invaded, intent on controlling the Terrans and their bizarre technology. Unfortunately for the Turians, the Terrans have experience fighting hostile alien invaders.
Crossover - StarCraft & Mass Effect - Rated: T - English - Chapters: 7 - Words: 90,510 - Reviews: 520 - Favs: 1,660 - Follows: 1,875 - Updated: 7/1/2014 - Published: 3/24/2013
Ending the Cycle
by Reiksguard Knight reviews
The Great Wars are over. The Koprulu Sector's factions have been at peace for more than a year. On the other side of the galaxy, the Reapers have finally returned to citadel space, determined to continue their cycle. Unfortunately for the Reapers, the hardened veterans of the K-Sector are equally determined to stop them. [contains OCs, slightly AU]
Crossover - StarCraft & Mass Effect - Rated: T - English - Chapters: 5 - Words: 39,344 - Reviews: 25 - Favs: 100 - Follows: 125 - Updated: 6/22/2014 - Published: 5/10/2014
A Universal Galaxy Ruptures
by Halo-Guy Fan reviews
Multiple crossovers JC's Avatar, Star Wars, Halo, Mass Effect, and more. Ch.10: Turians vs Mandalorians
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 99,090 - Reviews: 2750 - Favs: 354 - Follows: 376 - Updated: 6/16/2014 - Published: 3/17/2013 - Master Chief/John-117, Shepard (M)
Out of This World
by stevebond1990 reviews
First I was a Vault Dweller, then I was a Merc, then I was a Knight, then I was a Hero. After that I was a Wanderer, then I was a Courier, Then I was a Ranger, Then they made me a Lab Rat. Now I'm lost, on a Starship called Normandy, I'm drinking buddies with a Cripple, a Pirate, a Merc and a Vigilante. I'm taking orders from a Ghost and in love with an Ice Queen. Just Another Day.
Crossover - Fallout & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 8,100 - Reviews: 23 - Favs: 107 - Follows: 152 - Updated: 6/1/2014 - Published: 3/18/2014 - [Lone Wanderer, Miranda L.] Reilly, Shepard (F)
by Andrithir reviews
After bringing an end to the war against the Reapers, Commander Adam Shepard finds himself caught in the midst of another brutal war, a war that humanity had been losing for nearly three decades.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 3,839 - Reviews: 24 - Favs: 32 - Follows: 48 - Published: 5/10/2014 - Master Chief/John-117, Shepard (M)
The Only Way is Forward
by ZyZhang7 reviews
When a mysterious portal appears at the edge of the Oort Cloud in space, a UNSC fleet is dispatched, only to find themselves in a completely different universe where yet another ancient Galactic threat is upon them. Post Halo 4, ME1.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 5 - Words: 11,388 - Reviews: 63 - Favs: 228 - Follows: 317 - Updated: 5/3/2014 - Published: 1/26/2014
Halo: Mass Contact
by BattleshipFusou reviews
Thirty-five years have past since the end of the Human-Covenant War. Having reclaimed most all its previous glory, the UNSC exploration locates a massive artificial construct in the outer orbit of a star. While investigating the object alongside their Sangheili allies, new aliens come forth from the construct and bring humanity into a fate they never expected. ON HIATUS
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 20 - Words: 26,814 - Reviews: 637 - Favs: 842 - Follows: 1,145 - Updated: 4/30/2014 - Published: 12/22/2012
Fifty Shades of Overkill
by TheBleachDoctor reviews
When you become an extragalactic entity, meeting other galactic civilizations becomes an inevitable occurrence, and First Contact rarely goes well for the less-advanced society. Pre-ME through ME3. Rated T for language and implied sexual situations later on. Extremely Light parody on Halo OPness AKA Halo tech taken to its logical conclusion.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 34,074 - Reviews: 738 - Favs: 970 - Follows: 1,248 - Updated: 4/11/2014 - Published: 2/11/2013 - Shepard (F), Admiral Hackett, Tali'Zorah, EDI
Best of Both Worlds
by YappiChick reviews
"What's a Halo?" / "I have no idea, Number One, but I suspect we will find out soon enough."
Crossover - StarTrek: The Next Generation & Halo - Rated: K+ - English - Sci-Fi - Chapters: 16 - Words: 17,085 - Reviews: 49 - Favs: 103 - Follows: 101 - Updated: 4/8/2014 - Published: 7/26/2013 - Data, J. Picard, Cortana, Master Chief/John-117 - Complete
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: 430 - Favs: 616 - Follows: 744 - Updated: 3/27/2014 - Published: 7/12/2010
The Empire of Man
by Holland93 reviews
Humanity's reaction to the discovery of the archives on mars was very different from what happened in the games. The militaristic Empire of man is preparing to expand. But how will they react when they discover that they are not alone in the galaxy. And more importantly. How will the galaxy respond to humanity? First contact story. Rated T for language and gore update this week.
Mass Effect - Rated: T - English - Drama - Chapters: 12 - Words: 100,952 - Reviews: 441 - Favs: 697 - Follows: 809 - Updated: 2/5/2014 - Published: 6/16/2013
Stuck in a World of Fiction
by TREBOR117 reviews
Instead of starting a new game, I end up living it. Now, stuck in a world meant to be fiction, I must use my knowledge to save this universe. OC/Ashley, Femshep/Liara. Rated T for language. Newly rewritten and improved.
Mass Effect - Rated: T - English - Humor/Romance - Chapters: 71 - Words: 308,232 - Reviews: 627 - Favs: 721 - Follows: 599 - Updated: 1/28/2014 - Published: 5/9/2013 - Ashley W., Shepard (F), Tali'Zorah, OC - Complete
Tactical Advantage Available
by SPEC OPS STG reviews
(REWRITTEN) The art of war always changes, never staying the same. Though in this case humanity is the only race able to keep up with evolution.
Crossover - Mass Effect & Crysis - Rated: M - English - Sci-Fi - Chapters: 10 - Words: 48,004 - Reviews: 201 - Favs: 307 - Follows: 372 - Updated: 1/25/2014 - Published: 7/8/2013
by Rogue Vector reviews
In the near future of the 21st century, there is only boredom for Michael. Until the finest of the 41st Millennium start appearing in his living room. While shrunk down to miniature scale. With functional weapons. And they are really, really pissed off...
Warhammer - Rated: T - English - Sci-Fi/Humor - Chapters: 33 - Words: 179,721 - Reviews: 860 - Favs: 1,111 - Follows: 1,002 - Updated: 1/14/2014 - Published: 10/29/2009
Mass Effect: The First War
by ProfFartBurger reviews
The Prothean Ruins weren't. They contained little more than mentionings of an Alien Society; as a result, humanity develops on a completely different path than what was intended, and when first contact is made not with the Turians, but a desperate, destitute race viewed as beggars and thieves, how will this dying race change Humanity? And how will Humanity change the Galaxy? *A/U!*
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 22 - Words: 200,906 - Reviews: 1738 - Favs: 2,950 - Follows: 2,223 - Updated: 1/12/2014 - Published: 1/26/2013 - OC - Complete
Coming of the Ancients
by Shadowz081 reviews
Centuries after the end of the great war, the UNSC and Neo-covenant now live in peace, but what happens when they discover not just one but two splinter fraction of humans? The System Alliance and their Citadel and Prehistoric humanity and their old allies. But with their welcoming appearance, so will ancient threats loom around the corner ready to wage war...
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 74,425 - Reviews: 280 - Favs: 541 - Follows: 601 - Updated: 1/4/2014 - Published: 9/19/2012
The Necron Interference
by Mag'ladroth reviews
Humanity did not discover a Prothean cache of weapons or technology in the Sol system. No, they discovered something older, grander, a race seeking to finish the last request of a sleeping god. This is my first story, as such, I do not own anything. I am very appreciative of replies and support. Also, cover image. Whoever it belongs to, just ask and I will take it down. Thanks!
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 4,709 - Reviews: 472 - Favs: 885 - Follows: 1,073 - Updated: 12/24/2013 - Published: 5/5/2013
HALO: The Chain
by MEleeSmasher reviews
Taking place during and after, UH-60 NIGHTSTALKER's HALO: The Terran-Republic Affair. The Terrans appearance in the galaxy changed many lives, and this story aims to tell them how they did so. Multiple story branches, some parts tying in with Spartan Ops.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 122,158 - Reviews: 196 - Favs: 219 - Follows: 251 - Updated: 12/21/2013 - Published: 2/15/2013
Halo: Stars of the Inheritors
by DragonKnightRyu reviews
Ten years after the end of the Human-Covenant war, an unease peace has existed between the Covenant Separatists, and the UNSC. A task force, known as Alpha-5 which consists of UNSC and Separatist ships was formed to ease these tensions. But when these ships find themselves in a new galaxy a long way from home, they will have to fight in order to survive.
Crossover - Star Wars & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 16,595 - Reviews: 37 - Favs: 118 - Follows: 105 - Published: 12/16/2013 - Obi-Wan K., Qui-Gon J., OC, OC
History Repeated, Lesson Learned
by KitBeast reviews
The Prothean empire left a great many Beacons behind after there fall, there purpose, to warn the younger races of the dangers of the Reapers. Unfortunately no one could understand them. What would happen if someone could.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 18 - Words: 51,084 - Reviews: 1061 - Favs: 1,561 - Follows: 1,828 - Updated: 12/10/2013 - Published: 2/20/2013
Starcraft: Forward Unto Dawn
by The Mighty Santa reviews
3 years after the events of Halo 3, a portal engulfs UNSC Forward Unto dawn, transporting it 172,000 light years away and 52 years back in time, in Mar Sara's airspace. Master Chief escapes. What difference shall he make in this world?
Crossover - StarCraft & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 8 - Words: 15,002 - Reviews: 80 - Favs: 53 - Follows: 68 - Updated: 12/6/2013 - Published: 4/19/2013
Avengers of the Ring
by Dr Matthattan reviews
Due to a freak accident involving the Bifrost, the Avengers Captain America, Thor and the Hulk are thrown into the world of Middle-earth. They join the Fellowship of the Ring in their epic struggle to defeat the Dark Lord Sauron.
Crossover - Lord of the Rings & Avengers - Rated: T - English - Adventure/Humor - Chapters: 46 - Words: 269,301 - Reviews: 1043 - Favs: 1,203 - Follows: 712 - Updated: 12/3/2013 - Published: 12/7/2012 - Complete
Starcraft AU: Tiberium Galaxy
by avatar-of-kane reviews
More than 400 years has passed since the events of Tiberium Twilight. Now, stuck in the Koprulu Sector, Kane and the Brotherhood of Nod plans a new level of ascension. No terrans, protoss or zergs shall stop them. First part of trilogy.
Crossover - StarCraft & Command & Conquer - Rated: T - English - Adventure/Sci-Fi - Chapters: 29 - Words: 297,309 - Reviews: 240 - Favs: 163 - Follows: 150 - Updated: 11/30/2013 - Published: 6/23/2010 - James R., Kane
And the Meek Shall Inherit the Galaxy
by Full-Paragon reviews
Due to a shift in turian and quarian patrols, first contact for humanity is friendly; Rael'Zorah and Hannah Shepard become friends, as do their species. But the galaxy is not a safe place, and schisms develop when the Council steps in. As humanity finds new allies among the stars, something darker stirs. The Meek must beware, for it is nearly harvest time. AU, lots of worldbuilding
Mass Effect - Rated: T - English - Sci-Fi/Family - Chapters: 49 - Words: 232,286 - Reviews: 3632 - Favs: 2,804 - Follows: 2,195 - Updated: 11/16/2013 - Published: 3/31/2013 - Tali'Zorah, Shepard (M), Hannah S., Rael'Zorah - Complete
Mass Effect 2: Desperation
by Alan J. Worthington reviews
Humanity is threatened, and Commander Shepard is tasked with saving his species. He must find and recruit men and women skilled enough - and willing enough - to fight against suicidal odds. Though the galaxy is big, and such individuals are scarce, Shepard learns one thing: there will always be those willing to fight for the right cause, no matter which galaxy they may come from.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 47,763 - Reviews: 16 - Favs: 51 - Follows: 64 - Updated: 11/7/2013 - Published: 6/20/2013 - Shepard (M)
Reclamation and Ascendancy
by Sentinel 677 reviews
Imagine a Halo/Me Xover where humanity didn't: become BFF's with the elites, stomp the turians at Shanxi, become besties with the quarians, defend the krogan and true geth against the 'EVIL' council and then kick said council to the curb. Imagine it didn't become just a retread of the first game. Imagine it didn't start with a timeline. This is my attempt at that.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 26,201 - Reviews: 141 - Favs: 267 - Follows: 382 - Updated: 11/7/2013 - Published: 11/13/2012
Halo: A New Age
by xpredatorx reviews
In the 26th century humanity along with the sangheili, san'shyuum formed the Orion Systems Alliance the center of galactic government in the orion arm of the galaxy, soon the OSA will meet the citadel council and discover a billion year old secret.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 34 - Words: 225,340 - Reviews: 705 - Favs: 680 - Follows: 676 - Updated: 10/7/2013 - Published: 3/24/2012
On the Brink: Alternate
by FunnyGinger08 reviews
So this is an alternate version of On the Brink. It's basically got stuff that would've worked out well, but I didn't do. On the Brink (Rewrite)'s going to be my focus, so I'm aiming to update this every Friday. Don't really know anything about if I'm going to do pairings or not, or what I'll have in here. Rated M for any future chapters.
Crossover - Halo & Mass Effect - Rated: M - English - Fantasy - Chapters: 18 - Words: 43,206 - Reviews: 48 - Favs: 114 - Follows: 147 - Updated: 10/3/2013 - Published: 6/21/2013 - Master Chief/John-117, T. Lasky, Shepard (F)
by Annonimous4862 reviews
For a brief amount of time, the hermit remembered, and he felt he had to do something... and perhaps he did. But then he forgot, and just returned to his questions.
Crossover - Inheritance Cycle & Elder Scroll series - Rated: M - English - Chapters: 19 - Words: 160,367 - Reviews: 749 - Favs: 1,093 - Follows: 1,110 - Updated: 9/5/2013 - Published: 9/16/2012 - Eragon S., Dragonborn/Dovahkiin
Halo: First Contact
by FuzyDr4G0NZ reviews
An Asari Deep space exploration craft discovers an unknown wreck in space, meanwhile the UNSC Gorgon is sent out on a scouting mission into the lost outer colonies.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 62,980 - Reviews: 475 - Favs: 607 - Follows: 831 - Updated: 8/26/2013 - Published: 12/19/2012
by Inquisitor Azreal reviews
The cold was unnatural it seeped into your bones, it penetrated your very being and urged you to close your eyes. Begged you to. Some resisted, thrashed in their pods until they were dragged unwillingly into the darkness. For me? Faster than falling asleep. (Spiritual Successor to Spirit of Fire: First Contact) OCxAshoka AU
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Romance - Chapters: 3 - Words: 6,574 - Reviews: 32 - Favs: 40 - Follows: 63 - Updated: 7/21/2013 - Published: 5/7/2013
Welcome to the Future
by SC84 reviews
An AU fiction that combines the Mass Effect and Crysis universes. A recently revived Commander Jane Shepard must assemble a new team to face the threat of the Collectors. Along the way, she finds another "dead" soldier: Alcatraz, in his Nanosuit, frozen and forgotten in an ancient Ceph ruin. Ignores Crysis 3. Slightly changes events prior to Mass Effect 1. NOT A SHIPPING FIC.
Crossover - Mass Effect & Crysis - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 12,267 - Reviews: 112 - Favs: 206 - Follows: 294 - Updated: 7/21/2013 - Published: 8/18/2012 - Shepard (F), Alcatraz
A Spartan's Tale
by nickmac3 reviews
A Spartan IV, seperated from his team, and his universe, must learn to adapt. First person POV, told from an OC's perspective. No parings.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 13 - Words: 31,896 - Reviews: 112 - Favs: 62 - Follows: 94 - Updated: 7/13/2013 - Published: 12/22/2012 - Shepard (F)
by swsf09 reviews
Empires rise and fall in the Milky Way Galaxy. Could one person have the power to bring them all down? Or will they find the strength to forge something greater out of the fires of war. Update.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 112,173 - Reviews: 216 - Favs: 230 - Follows: 241 - Updated: 7/4/2013 - Published: 11/18/2012 - Master Chief/John-117, Shepard (M)
Gears of the Great Crusade
by ExiledAdrian reviews
AU After learning that he is adopted, Miguel Gears is suddenly transported to the universe of Warhammer 40k. There, he is mysteriously selected to train under the nineteen Primarchs of the Space Marine Legions. He learns the values of each Legion, as well as important lessons. But the Heresy is coming. And time is running out. The Horus Heresy is coming. rewrite
Warhammer - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 17,436 - Reviews: 15 - Favs: 24 - Follows: 26 - Updated: 7/4/2013 - Published: 3/23/2013
Democracy meets Democracy
by Bow Down and Beg reviews
Humanity develops the Hyperdrive, leading to a whole new path of technological advancement.
Crossover - Star Wars & Mass Effect - Rated: T - English - Adventure - Chapters: 1 - Words: 2,345 - Reviews: 50 - Favs: 192 - Follows: 273 - Published: 6/9/2013
The Emperor Protects (On Hiatus)
by MrDarth151 reviews
When the Imperium is thrown into unfamiliar universe, changes are inevitable. Will they be for better or worse, it remains to be seen. But, one thing is certain. One day, there will be war. And it is the craft mankind knows best. Cover created by GENZOMAN from Deviantart.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 4,182 - Reviews: 56 - Favs: 82 - Follows: 137 - Updated: 5/12/2013 - Published: 12/2/2012 - Inquisition, Shepard (M)
Halo: The Empyrean Effect
by Vizantir reviews
What if humanity has a much grander destiny than anyone has ever even imagined? They need only to discover the secret, buried for eons uncounted. Rated T for battle scenes and thematic content. Features many OC's. Warning: This fic is EXTREMELY AU. - FULL REVISION IS BEING PLANNED
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 67,716 - Reviews: 220 - Favs: 274 - Follows: 354 - Updated: 5/11/2013 - Published: 9/3/2012
Kasrkin: Guardians of Humanity
by bokka501 reviews
The Kasrkin were the imperium's finest, men and women standing shoulder to shoulder against the never-ending tide of humanities enemies. Proud martial traditions stretching all the way back to a time prior to the great betrayal. During the heady days of the dark age of technology they stood firm as the Systems Alliance's premier soldiers, no less feared then as now.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 12,226 - Reviews: 66 - Favs: 106 - Follows: 146 - Updated: 5/9/2013 - Published: 3/19/2013
Always a Bigger Fish
by DaLintyMan reviews
No matter how powerful you are, how many planets you hold... There is always someone better.
Crossover - StarCraft & Mass Effect - Rated: T - English - Chapters: 4 - Words: 4,438 - Reviews: 27 - Favs: 92 - Follows: 126 - Updated: 4/24/2013 - Published: 4/16/2013
Not Always Lost
by TheSuperintendent reviews
Jorge-052 gave his life to save Reach. After all, Slipspace "bombs" are supposed to eliminate targets, not transport them to another galaxy far away. Now Noble Five and what remains of a marine fire team must make it back to the fight before it ends, but not before witnessing the shifting sands of the Galactic Republic.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 7,214 - Reviews: 42 - Favs: 48 - Follows: 74 - Updated: 4/23/2013 - Published: 2/10/2013 - Jorge-052/Noble Five
HALO: The Terran Republic Affair
by UH-60 NIGHTSTALKER reviews
When the Newly formed Terran Union and its allies make contact with the Galactic Republic, it sets off in motion events that would shake up a galaxy that is not so far away. Slight A/U.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 32 - Words: 79,884 - Reviews: 978 - Favs: 795 - Follows: 553 - Updated: 2/15/2013 - Published: 8/18/2012 - Complete
From The Warp
by Norse Raider reviews
Time kills all things, but man has always tried to fight his fate. But is the Imperium's final gambit their salvation, or the damnation of all that they cling to.
Crossover - Warhammer & Mass Effect - Rated: M - English - Chapters: 3 - Words: 3,614 - Reviews: 42 - Favs: 38 - Follows: 55 - Updated: 2/6/2013 - Published: 12/7/2012 - Imperial Guard, Shepard (M)
Awaking the Mantle
by HD-spartan reviews
Long before the Reapers there was a race of gods. They had advanced to the highest point of evolution and technology, and when as their forefathers had done they activated the Array. But they left one who had fought Gods and Demons, the one who, as his predecessor had done, burned the galaxy of all life. An ancient power stirs. He awakes. And his fury will burn the stars themselve.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,800 - Reviews: 89 - Favs: 251 - Follows: 293 - Published: 1/28/2013 - Master Chief/John-117, Harbinger
A New Frontier: Into the Storm
by ThrashMetallix reviews
After an unexplainable phenomena strands two UNSC ships 75,000 light years from home, and almost 50 years into the past,they find themselves right in the middle of a war between humans they never knew even existed, and two alien races they've never before encountered. Now they must not only try and adapt, but must also find a way back home... (A rewrite in progress!)
Crossover - StarCraft & Halo - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 19,788 - Reviews: 15 - Favs: 42 - Follows: 66 - Updated: 11/29/2012 - Published: 11/21/2012
Masses to Masses 3
by iNf3ctioNz reviews
With Shepard gone and the crew disbanded, it should have just been two years waiting. Instead, Garrus and I face a new squad, a new station, new enemies, and a web of crime that's gonna take a hell of an untangling. Welcome to Omega. Welcome to Hell. Thanks to wielkiboss on DeviantArt for the cover.
Mass Effect - Rated: T - English - Adventure/Crime - Chapters: 66 - Words: 396,438 - Reviews: 2393 - Favs: 718 - Follows: 484 - Updated: 11/6/2012 - Published: 6/24/2011 - Garrus V., Aria T'Loak, Lantar Sidonis - Complete
by Toasterman reviews
It is the 41st millennium. The Imperium of Man is besieged on all sides by aliens, heretics and mutants. Mankind faces extinction. Its people pray for salvation. Heeding the call, the Emperor has sent...well, the best he could get on such short notice. Now ready for a ball-busting, chaos-purging second half!
Crossover - StarCraft & Warhammer - Rated: T - English - Adventure/Humor - Chapters: 58 - Words: 248,867 - Reviews: 815 - Favs: 391 - Follows: 369 - Updated: 7/22/2012 - Published: 11/22/2009
by OhSoDeadly reviews
The war has been over for nearly a year, but the Covenant are still a threat, humanity and the Sangheili find themselves beleaguered to keep the peace, and dangerous secrets infest everything they do. In order to stand a chance of turning the tide, a prototype squad comprised of the best soldiers both races have to offer is put into action.
Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 21 - Words: 163,349 - Reviews: 41 - Favs: 51 - Follows: 45 - Updated: 6/20/2012 - Published: 12/7/2009 - T. Hood, Rtas 'Vadumee
by Bloody Mary reviews
Some decisions change much more than you'd expect, for good or for bad. Set during the Great Crusade; focus on World Eaters, Death Guard and Emperor's Children
Warhammer - Rated: K+ - English - Friendship - Chapters: 18 - Words: 28,768 - Reviews: 33 - Favs: 31 - Follows: 31 - Updated: 5/20/2012 - Published: 2/25/2011 - Khârn the Betrayer, Mortarion - Complete
Welcome to The Family
by TheRev28 reviews
After a very unfortunate turn of events, I find myself hip deep in the Mass Effect universe. Why could I possibly be here? How can one teenager and an unexpected companion possibly have an effect in Mass Effect? I hope I find out soon. T for language
Mass Effect - Rated: T - English - Adventure/Romance - Chapters: 37 - Words: 169,136 - Reviews: 822 - Favs: 553 - Follows: 370 - Updated: 4/12/2012 - Published: 7/15/2011 - [Ashley W., OC] Shepard (F), Garrus V. - Complete
by Messypeaches reviews
Written before 'The Torchwood Effect'. Unforgivably silly, fem!shep, Garrus, babies and dealing with bullies. Listed as a Dr. Who crossover because it's probably his fault, but he don't show up till the sequel
Crossover - Doctor Who & Mass Effect - Rated: K+ - English - Humor - Chapters: 1 - Words: 3,814 - Reviews: 3 - Favs: 9 - Follows: 2 - Published: 3/25/2012 - 10th Doctor, Shepard (F)
No Rest for the Weary
by RNG-ERROR reviews
John-117 sent to the StarCraft Universe, Full Summary inside. Notice this is NOT abandoned. Until I can afford a new computer however it will not be updated.
Crossover - StarCraft & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 33,524 - Reviews: 64 - Favs: 127 - Follows: 159 - Updated: 2/20/2012 - Published: 2/4/2012 - Nova, Master Chief/John-117
Masses to Masses 2
by iNf3ctioNz reviews
After two years with Garrus at C-Sec, it's finally time. Shepard's here, and we've got a rogue Spectre to stop, a Reaper to defeat, a missing girlfriend to save...in the only way we know how. With plenty of gunfire, one-liners and romance! Sequel fic. Thanks to wielkiboss on DeviantArt for the cover.
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 40 - Words: 241,183 - Reviews: 1261 - Favs: 675 - Follows: 284 - Updated: 3/17/2011 - Published: 10/5/2010 - Shepard (F), Garrus V., U. Wrex, Tali'Zorah - Complete
Masses to Masses
by iNf3ctioNz reviews
After a freak event sends me into the ME universe 2 years before ME1, I find myself working at C-Sec. As if dealing with serial killers, drug smugglers, and Garrus Vakarian wasn't enough, I need to work out why I was sent here, and I need to survive. Thanks to wielkiboss on DeviantArt for the cover.
Mass Effect - Rated: T - English - Adventure/Crime - Chapters: 34 - Words: 102,397 - Reviews: 679 - Favs: 907 - Follows: 334 - Updated: 9/25/2010 - Published: 7/6/2010 - Shepard (F), Garrus V., Executor Pallin - Complete
Spirit of Fire: To save humanity
by Left hand turn signal reviews
A crossover, Spirit of Fire and John Sheppard from mass effect. The spirit has escaped the shield world, but now they have no idea where they are, or where to go, until they come into contact with other humans who have never heard of the covenant or UNSC
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 46,880 - Reviews: 178 - Favs: 335 - Follows: 373 - Updated: 8/17/2010 - Published: 8/13/2009
Rules of Engagement
by WarlordFil reviews
ODST Major Evan Doucette thought he was prepared for the challenge of being the first Human Ambassador to Sanghelios. He had no idea the position came complete with a Sangheili bride... Human male/Elite female. COMPLETE.
Halo - Rated: M - English - Romance/Drama - Chapters: 6 - Words: 24,937 - Reviews: 240 - Favs: 514 - Follows: 265 - Updated: 8/4/2010 - Published: 1/30/2010 - Complete
by WarlordFil reviews
When Sangheili warriors Usze 'Taham and N'tho 'Sraom meet, it's a case of hate at first sight! Things get more complicated when they are stuck fighting together, and there's no greater enemy than their own pasts... Usze x N'tho pairing.
Halo - Rated: M - English - Romance/Sci-Fi - Chapters: 20 - Words: 81,386 - Reviews: 67 - Favs: 46 - Follows: 13 - Updated: 7/12/2009 - Published: 4/7/2009 - Complete
The Enemy of My Enemy
by Katsuhiro reviews
"Of all the conflicts recorded in the latter stages of the Human-Covenant War, perhaps one of the most interesting was that which occured on the Outer Colony Crassus, c.Nov.2552. Interesting, and with an entirely unexpected outcome.." ONI Case-File 428/
Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 31 - Words: 115,331 - Reviews: 241 - Favs: 614 - Follows: 205 - Updated: 3/21/2009 - Published: 6/6/2008 - Complete
Brothers in Spirit
by Half-Jaw reviews
Two are born one Sangheili. The other Human. But the share a bond that reaches across space, time, and a war.
Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 10 - Words: 11,359 - Reviews: 44 - Favs: 30 - Follows: 29 - Updated: 12/29/2008 - Published: 9/2/2007
by general MB reviews
Kyle Stevens, just your average 17 year old kid living the average life of any Halo fan. Well what happens when he somehow ends up in the halo universe? How will he react in a world where the game is real? How will he survive the massive Human-Covenant war? And can he change the course of Halo history for the better with the stuff he knows, or will his intervention wreak havok?
Halo - Rated: T - English - Adventure/Romance - Chapters: 39 - Words: 114,314 - Reviews: 331 - Favs: 481 - Follows: 228 - Updated: 10/20/2008 - Published: 8/28/2008 - [Kelly-087, OC] Master Chief/John-117, C. Halsey - Complete