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A Brutal Truth REWRITE
by ReadyAimWait reviews
ADOPTED FROM BIG Z1776: When the Twelve Colonies and Earth are brought together through a technical fluke some may wish the fluke had not occurred at all. Because with two great spacefaring powers not everything can end well for both of them.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 29 - Words: 189,979 - Reviews: 337 - Favs: 334 - Follows: 500 - Updated: 9/27 - Published: 10/6/2021
Roads Paved in Shadows
by AlbertG reviews
"We don't have information on the numbers yet, sir," one of the commanders answered quickly. "It's not the Cylons. The Thirteenth Tribe is attacking us. We're at war with Earth." Adar was completely stunned that emotion quickly turning into a burning rage. "But why?" he snarled as his rage turned into a need for vengeance.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 36 - Words: 178,873 - Reviews: 548 - Favs: 389 - Follows: 444 - Updated: 9/19 - Published: 3/19/2017 - J. O'Neill, W. Adama
It Started At Shanxi
by SpaceTurtleOX reviews
Fifty 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: 17 - Words: 90,290 - Reviews: 608 - Favs: 1,857 - Follows: 2,746 - Updated: 9/16 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
Copeland Supply, Salvage, and Resale
by cliff.west reviews
This is a spinoff story. It takes place after "But a somehow a most melancholy" and" Hunted Tribes". Please read those before this bit of work. I will not be recovering those stories, but re-reading them will help you fallow this story. This fiction also will be slow on the combat action.
Crossover - Mechwarrior/Battletech & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 89 - Words: 1,230,830 - Reviews: 375 - Favs: 181 - Follows: 205 - Updated: 8/31 - Published: 11/3/2018
BattleTech: Combat Evolved
by IX404 reviews
While fleeing from the Inner Sphere following the Amaris Coup, the Exodus Fleet discovers an object out in the inky blackness of space. Little does General Kerensky or his sons know is that they will soon be within the center of a conflict that will decide the fate of Humanity and place the Star League-in-Exile at the forefront of the conflict.
Crossover - Mechwarrior/Battletech & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 24 - Words: 108,347 - Reviews: 297 - Favs: 259 - Follows: 280 - Updated: 8/24 - Published: 8/25/2022 - Master Chief/John-117, A. J. Johnson, Arbiter, 343 Guilty Spark
The Sins of our Fathers
by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 9 - Words: 84,696 - Reviews: 388 - Favs: 1,137 - Follows: 1,565 - Updated: 8/7 - Published: 2/11 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
A Universe of Change: By Candlelight-Defiance
by AlbertG reviews
Summary: The stranded Federation crews and Earth Alliance are slowly accepting each other. But a genocidal war with the Yonji Sinhindrea threatens everything. The Minbari are struggling for their very lives and old memories still linger. Vorlons and Shadows have fled. Now the younger races must come together or everything will die in fire.
Crossover - Babylon 5 & StarTrek: Other - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 15 - Words: 97,031 - Reviews: 134 - Favs: 137 - Follows: 152 - Updated: 7/8 - Published: 9/12/2020
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: 54 - Words: 171,679 - Reviews: 430 - Favs: 721 - Follows: 965 - Updated: 6/22 - Published: 1/25/2017
The Crusade of the Lost
by Ninoslav reviews
A fleet of Imperial reinforcements, Mechanicus detachment and a chapter of White Eagles meant for Cadian sector are swallowed in the unruly sea that is Warp. They emerge into a new universe, one without the Emperor, their faith strong, they will see this galaxy conquered.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 28 - Words: 203,679 - Reviews: 320 - Favs: 526 - Follows: 647 - Updated: 6/13 - Published: 8/16/2019
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: 127 - Words: 1,559,112 - Reviews: 972 - Favs: 1,601 - Follows: 1,666 - Updated: 6/13 - Published: 11/27/2016
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, and crosses with Firefly as of Interlude 2. Most B5 and BSG canon should remain unchanged, including EU. However, Firefly will mostly use series and film canon. Its EU began to expand after I had already merged the plots.
Crossover - Babylon 5 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi - Chapters: 40 - Words: 475,371 - Reviews: 188 - Favs: 254 - Follows: 268 - Updated: 4/1 - Published: 7/13/2018
Technophiles and Militarists
by thelordofdarkreunion reviews
The Reaper invasion is nigh. Outnumbered and outgunned, the Citadel must turn to two new, dangerous allies for salvation: the Adeptus Mechanicus and Imperium of Man.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 28 - Words: 334,217 - Reviews: 644 - Favs: 537 - Follows: 624 - Updated: 3/5 - Published: 4/22/2022 - Imperial Guard, Space Marines, Adeptus Mechanicus, Shepard - Complete
Bound By Destiny
by JacGoBama16 reviews
The Colonials discover they are not alone in the Universe. As the SGC races against time to find the Lost city of the Ancients, the Colonials erupt onto the Galactic stage with a tenacious fury unlike anything the Galaxy has seen. Destinies decided thousands of years ago begin to become clear as other forces watch from afar
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 39,428 - Reviews: 32 - Favs: 94 - Follows: 119 - Published: 2/26
Mass Effect: Invasion
by PoachedEgg reviews
In 1958, NATO and the Warsaw Pact come into contact with a hostile UFO. It seemed to defy the laws of physics with the way it moved and the way it's mass seemed to almost...fluctuate. In a joint effort, the two powers defeated the aliens, but only just. Now, the aliens have returned, and only one organization has any hope of stopping them: the Xenonauts.
Mass Effect - Rated: T - English - Sci-Fi/Mystery - Chapters: 13 - Words: 29,909 - Reviews: 27 - Favs: 126 - Follows: 176 - Updated: 2/3 - Published: 12/4/2021
BattleTech: The Mass Effect
by IX404 reviews
During the beginning of the Reaper War, Shepard is informed of a Prothean artifact claimed by Cerberus and sent to stop them. Little does he know is that soon, he will find himself and his crew in a world both familiar and alien to their own. (Undergoing revisions & minor rewriting.)
Crossover - Mechwarrior/Battletech & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 77 - Words: 398,994 - Reviews: 575 - Favs: 252 - Follows: 279 - Updated: 1/30 - Published: 12/21/2020 - Garrus V., Shepard, James V., Nyreen K. - Complete
Reincarnation in 40k
by The Great Saint reviews
Follow the story of Anon who is reincarnated in 40k after his unfortunate demise, why is he here? can he control his psychic abilities before being consumed by chaos? who brought him here? read through his journey as he seeks to answer these questions. Currently, the earlier chapters are being rewritten. (Image by TheMinttu, DeviantArt)
Warhammer - Rated: M - English - Adventure/Sci-Fi - Chapters: 17 - Words: 136,280 - Reviews: 162 - Favs: 392 - Follows: 457 - Updated: 10/1/2022 - Published: 2/4/2022 - Chaos Space Marines, Eldar, Inquisition, OC
Fallout: New Galaxy
by OneUpForExcelsior reviews
Courier Six after a bloody battle in Big mountain is thrown into the mass effect universe nearly a thousand years before the events of the trilogy. How will the galaxy react to the Legend of the Mojave desert and its magnet of trouble? Rated M just to be sure.
Crossover - Fallout & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 9 - Words: 36,940 - Reviews: 32 - Favs: 179 - Follows: 258 - Updated: 7/15/2022 - Published: 3/24/2022 - Courier, Tali'Zorah, Aria T'Loak, OC
by wroughtanew reviews
An alternate timeline where the 1997 Stargate Program never became a reality. Barebones military sci-fi with a focus on realistic military decisions. Key plot points retconned to close plot holes and power creep in the original series.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 26,707 - Reviews: 24 - Favs: 29 - Follows: 45 - Updated: 6/23/2022 - Published: 2/6/2022
by thelordofdarkreunion reviews
Everyone's favorite technophilic groups meet: the Adeptus Mechanicus from Warhammer 40k and the Quarians from Mass Effect. When the Cult Mechanicus learns of the existence of the A.I.'s known as the Geth and Reapers, they decide only one thing can be done, and enlist the help of Quarians to fight once more for their ancestral home. Keelah se'lai and Glory to the Machine God!
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 202,304 - Reviews: 420 - Favs: 828 - Follows: 943 - Updated: 4/18/2022 - Published: 9/24/2021 - Adeptus Mechanicus, Tali'Zorah, Kal'Reegar, Rael'Zorah - Complete
Vanguard of Vengeance
by M.B.Liddle reviews
When an unexpected delay prevents Shepard from reaching the Prothean beacon on Eden Prime in time, she makes a discovery that will throw the course of future history into disarray. Now, on the brink of a galactic extinction event, can Shepard defeat old enemies with a new host of allies? Can she turn the tide of darkness, or will she succumb to it. Find out in Vanguard of Vengeance
Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 23 - Words: 86,124 - Reviews: 156 - Favs: 126 - Follows: 152 - Updated: 4/15/2022 - Published: 12/3/2012 - J. Garson
A Divided Earth: The First War
by TheConeezeanEmperor reviews
HMS Isaac Newton and HMS Alexander Fleming open the Shanxi Relay. This has made a lot of people very angry and has been widely regarded as a bad move. The following course of events would lead to Humanity's first hot war in over a century, a war which could have exploded into full on Interspecies Total War, assuming of course the various human nations could even agree on anything.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 15 - Words: 121,498 - Reviews: 77 - Favs: 197 - Follows: 292 - Updated: 3/12/2022 - Published: 7/20/2021 - Admiral Hackett, Saren A., Illusive Man, Councilor Tevos
by Carthienes reviews
A series of snippets telling the story of the Human-Citadel war, fought between the Human X-Com and the Turian Hierarchy. Originally published on Reddit. Based on the original X-Com UFO Defence (1994), not the Reboot!
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 14 - Words: 21,693 - Reviews: 65 - Favs: 260 - Follows: 314 - Updated: 2/26/2022 - Published: 2/14/2022 - Complete
A Thin Veneer: The Knife's Edge
by AlbertG reviews
Summary: The continuation of 'A Thin Veneer' . the war between the Minbari and the Federation comes to a conclusion. But the Federation is there and there are forces that are not pleased with their presence. Cultural; differences clash and the tension increases. The Federation can leave, but Pandora's box is already opened.
Crossover - Babylon 5 & StarTrek: Other - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 15,897 - Reviews: 45 - Favs: 192 - Follows: 232 - Updated: 1/29/2022 - Published: 9/11/2020
Mobile Dockyard Daidalos
by Seawolf321 reviews
The Cylon War, arguably the most destructive war in human history wages through the Cyrannus Star Cluster. Join the crew of Mobile Shipyard Daidalos as they work furiously to build and deliver the Battlestars of the Columbia Project to help boost the capabilities of Colonial Fleet.
Battlestar Galactica: 2003 - Rated: T - English - Chapters: 1 - Words: 5,894 - Reviews: 5 - Favs: 23 - Follows: 23 - Published: 11/30/2021 - OC
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: 12 - Words: 54,908 - Reviews: 131 - Favs: 556 - Follows: 758 - Updated: 10/12/2021 - Published: 8/24/2017 - Tali'Zorah, Shepard, Han'Gerrel, Councilor Tevos
Reckoning of the Reclaimers (Being Rewritten)
by metts101 reviews
The Great War turned Humanity into something ugly. Their species' brush with extinction left a bitter taste in their mouths and they sought to rectify that the only way they knew how. Revenge. With the the subjugation of the Former Covenant species Humanity vowed never to fall to the alien again, but will an Alliance of Alien species change their outlook on the galaxy?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 41,721 - Reviews: 81 - Favs: 298 - Follows: 390 - Updated: 9/22/2021 - Published: 11/14/2020
Mass Effect: Lost Son of Terra
by Ares007 reviews
The Reapers had a system. They let Civilizations grow, then harvested once they were at their peak. What will happen when a wrench is thrown into that system in the form of Erwin Wolff. A broken man whose sole purpose was to kill Xenos. Pulled into a Xenophilic Galaxy. How will he deal with the Mass Effect trap and navigate new aspects of his life?
Crossover - Mass Effect & Halo - Rated: M - English - Adventure/Romance - Chapters: 12 - Words: 122,661 - Reviews: 36 - Favs: 199 - Follows: 259 - Updated: 9/21/2021 - Published: 6/29/2021 - [SPARTAN-B312/Noble Six, Oriana L.] [Shepard, Miranda L.]
Children of the Night
by QuantumSheep reviews
The world has changed, just not for the better. In a society rife with distrust, Brooklyn is drawn into a growing web of conspiracy. Gangsters, mercenaries, Illuminati conspirators and murderous 'imps', all with their own conflicting and nefarious agendas in play, encroach on all sides. Old friends and a few new ones are drawn together in a fight to decide control of the world.
Gargoyles - Rated: M - English - Supernatural/Adventure - Chapters: 75 - Words: 382,536 - Reviews: 4 - Favs: 9 - Follows: 10 - Updated: 8/20/2021 - Published: 3/1/2021 - Broadway, Brooklyn, Elisa M., Goliath - Complete
by Reddevel360 reviews
"Killing a man will harden you. Fighting a war against genocide will harden a species. Why are we so ruthless Councilor? Because when fighting for your very existence, anything is acceptable."-Lord Hood. Featuring a Humanity that discovered the archives on Mars in the midst of fighting an war for their very survival, a war that destined to be a massacre turns into a stalemate -Hia
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Tragedy - Chapters: 14 - Words: 90,584 - Reviews: 914 - Favs: 2,632 - Follows: 3,451 - Updated: 8/19/2021 - Published: 5/10/2019 - Master Chief/John-117, T. Hood, Admiral Hackett, Councilor Sparatus
Mass Effect: End of Days
by Postmeat reviews
An ancient danger threatens the galaxy, unknown to all. A humanity which never discovered Prothean ruins, expanding through space on their own, emerges. Joined with the machines they created, hardened by war with a terrifying enemy, they read the writing on the wall. But will the galactic community already there listen to these newcomers, stirring up trouble everywhere they go?
Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 20 - Words: 234,080 - Reviews: 742 - Favs: 2,973 - Follows: 3,583 - Updated: 8/1/2021 - Published: 3/8/2015 - Admiral Hackett, Shadow Broker, Shepard, Rachni Queen
Stargate: The Twelve Colonies
by Seraphin2011 reviews
The Cylons are preparing to attack the Colonies, and they are determined to end all human existence once and for all. But the Cylons don't know the Terrans have learned about their attack, and they will not stay idle and let the Cylons commit such atrocity, not if they can help it. This is a spin-off from the other story I'm writing, splitting around the half of the second book.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 33 - Words: 305,326 - Reviews: 993 - Favs: 984 - Follows: 1,184 - Updated: 7/3/2021 - Published: 5/21/2013 - Complete
Living an Indoctrinated Dream
by Aberron reviews
Sending Shepard back in time? Inefficient. Unlikely to produce significant changes to timeline. Sending the Illusive Man back in time? Difficulty level has increased. Jack Harper, The Illusive Man, is back where it all started. New Cerberus, New plan, and the Reapers watching, always watching. Sending a Hero back in time does nothing; Sending back this guy? Priceless. AU.
Mass Effect - Rated: M - English - Chapters: 93 - Words: 1,116,609 - Reviews: 938 - Favs: 1,462 - Follows: 1,517 - Updated: 6/17/2021 - Published: 6/16/2014 - Garrus V., Illusive Man, Shepard, Hannah S.
by Xeal II reviews
An old, decommissioned warship crewed by drunken, rowdy civilian and ex-military salvage profiteers learns to survive and cope with the aftermath of the Cylon attack. Searching out the survivors of Cain's civilian fleet, they begin to fight back.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 40 - Words: 164,716 - Reviews: 260 - Favs: 294 - Follows: 311 - Updated: 6/7/2021 - Published: 5/18/2009 - W. Adama, Number Six, H. Cain, J. Cavil - Complete
United we Stand
by Mayto reviews
At the height of the Human Covenant war, another galactic power intervenes to aid the embattled humans. Standing side by side with the Turians, the UNSC prepares for a new phase of the Human Covenant war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 86 - Words: 308,563 - Reviews: 1471 - Favs: 1,393 - Follows: 1,672 - Updated: 6/6/2021 - Published: 3/26/2019
by YuTG reviews
Michael, the hybrid, makes a pact that would that would send shock waves throughout the Pegasus Galaxy that would change everything. I am not sure of the Ratings but I don't think I did anything that wasn't covered by Stargate franchise if I need to change the ratings please tell me. The four characters I indicated play a valuable role in the entire story but I will OCs too
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 61,760 - Reviews: 12 - Favs: 14 - Follows: 22 - Updated: 5/5/2021 - Published: 1/18/2021 - S. Carter, D. Jackson, Michael, Todd
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: 36 - Words: 402,465 - Reviews: 760 - Favs: 1,390 - Follows: 1,661 - Updated: 3/7/2021 - Published: 3/1/2014
Neptune's Revenge: Sailing the Dark Sea
by cliff.west reviews
INTRO: You need to read Neptune's Revenge before starting this book. The Colonials after joining forces with a group from Rifts Earth had thrown the Cylons off of New Caprica. Now they must repair, rebuild, recover, and then prepare for the future. The Cylons are gone, for now. The now mixed group must work together to find the planet that the Colonial are looking for along with th
Crossover - Rifts & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 57 - Words: 860,515 - Reviews: 34 - Favs: 57 - Follows: 46 - Updated: 2/13/2021 - Published: 10/24/2017 - Complete
by IX404 reviews
Near the end of the war, the Covenant thought Humanity was finished. Little do they know, is that they will soon meet their worst nightmare: a remorseless, emotionless and utterly relentless machine. It's goals: protect Humanity, and terminate the Covenant.
Crossover - Terminator & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 60 - Words: 380,429 - Reviews: 660 - Favs: 634 - Follows: 596 - Updated: 2/12/2021 - Published: 7/17/2020 - The Terminator, Master Chief/John-117, Arbiter, SPARTAN-B312/Noble Six - Complete
by GreaterGoodIreland reviews
The end of the Eden Prime War saw the liberation of Rannoch, humans on the Council, the revelation of the Reapers to the galaxy... and the 'assassination' of Shepard. Two years later, the Reapers still have not returned, the galaxy is on the brink of war yet again, and Cerberus knows more than it should. - AU ME2 with the background of Battlefield 2142 - HFY -
Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 45,643 - Reviews: 70 - Favs: 182 - Follows: 204 - Updated: 2/6/2021 - Published: 11/8/2017 - [Liara T'Soni, Shepard] OC
SGU: Season 3 (Spin-off to The Fifth-Race Reclaimers)
by Piero217 reviews
After a three-year long journey through FTL, Young and Rush are awakened by Eli only to receive some very distressing news. But just when all hope seems lost, a group of newcomers comes along who claim to be allied with the SGC—and capable of restoring Destiny. Too good to be true? Only time will tell. (Written in collaboration with AdmiralWhiteFang)
Crossover - Halo & Stargate: Universe - Rated: T - English - Sci-Fi/Drama - Chapters: 3 - Words: 29,454 - Reviews: 16 - Favs: 89 - Follows: 124 - Updated: 1/23/2021 - Published: 9/22/2019 - OC, Eli W., Dr. N. Rush, Col. E. Young
The Fifth-Race Reclaimers
by Piero217 reviews
The Four Great Races once watched over thousands of worlds… but only one species was destined to inherit their place. Now, as an ancestral enemy rises from the ashes and threatens all life as we know it, humans from two different universes must learn to overcome their differences and stand together to reclaim the Mantle of Responsibility. Set shortly after the events of Spartan Ops
Crossover - Halo & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 166,249 - Reviews: 270 - Favs: 465 - Follows: 484 - Updated: 1/23/2021 - Published: 6/1/2013 - Master Chief/John-117, C. Halsey, Cortana, John S. - Complete
by GreaterGoodIreland reviews
"The Parties agree that an armed attack against one or more of them in Europe or North America shall be considered an attack against them all."
Stargate: SG-1 - Rated: M - English - Adventure - Chapters: 1 - Words: 1,909 - Reviews: 8 - Favs: 54 - Follows: 38 - Published: 11/18/2020 - OC
by Gabenator5 reviews
After the destruction of the Normandy, Tali'Zorah sets out to explore the lesser-explored regions of the galaxy in search of rare materials for the Migrant Fleet. During her adventures, she stumbles upon something that shouldn't exist—a wreck. The galaxy will never be the same...
Crossover - Halo & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 7 - Words: 17,121 - Reviews: 354 - Favs: 1,150 - Follows: 1,709 - Updated: 9/28/2020 - Published: 1/7/2018 - Tali'Zorah
Fear No Evil (The War in Heaven, Book II)
by QuantumSheep reviews
Colonel John Sheppard leads a new team, among its members Daniel Jackson, along with a reckless young Captain and a reptilian alien soldier. Investigating rumors of a mysterious enemy on the fringes of the galaxy, Sheppard and his team are drawn into the power-plays of two rival alien peoples, while a much larger conflict brews on the horizon. A follow-up to 'Valley of Darkness'
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 66 - Words: 338,215 - Reviews: 64 - Favs: 16 - Follows: 24 - Updated: 9/18/2020 - Published: 4/20/2020 - D. Jackson, J. Quinn, R. Woolsey - Complete
Stargate Hastings parts 1 and 2
by Sci-fiwasmyfather reviews
AU. A powerful but benevolent family from the isles of Britain, have been searching for the Stargate for centuries. In the late nineteenth century a member of that family returns from war with a broken body and is informed of his families centuries long quest. Our story begins five years after Richard Hastings return from war. Now uploading part two. Still revising part one
Stargate: SG-1 - Rated: K - English - Sci-Fi/Adventure - Chapters: 53 - Words: 196,987 - Reviews: 12 - Favs: 34 - Follows: 39 - Updated: 9/10/2020 - Published: 7/25/2019 - Apophis, Ra, Hathor
Spirit Unto Dawn
by free man writer reviews
Spartan's found only to be lost. A ship filled with humans in a galaxy not their own. The Spirit of Fire finds itself with new allies in a galaxy they are unfamiliar with, dealing with its own set of problems and apocalyptic enemies. Co-created and written with BulletStormX
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 119,845 - Reviews: 711 - Favs: 1,683 - Follows: 2,122 - Updated: 7/25/2020 - Published: 4/16/2020 - Master Chief/John-117, SPARTAN-B312/Noble Six, Tali'Zorah, Shepard
Angel's Lament (Remake In Progress) Will resume on my New Account
by BrotherAntrosOfTheBloodAngels reviews
A Strike Force of Blood Angels and Lamenters are thrust into a completely new reality, along with a fleet of Imperial Refugees. But how? And Why? If fate is to be believed the Emperor has sent the Angel's Sons here with a task. They are to protect an infant Mankind from an encroaching Darkness. But even though this galaxy despises everything about them will they be able to save it?
Crossover - Warhammer & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 27 - Words: 179,644 - Reviews: 343 - Favs: 504 - Follows: 627 - Updated: 7/25/2020 - Published: 11/18/2019 - Imperial Guard, Space Marines, Shepard
Unknown: Everything Will Change
by Black Shield INC reviews
In the year 2556 the small yet prospering U.N.S.C colony world of Shanxi is attacked by an unknown species. The events that followed will change everything for both the U.N.S.C and their Allies. I do not own Halo or Mass Effect both games belong to there respective owners. Chapters 1-9 are undergoing rework.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 67,445 - Reviews: 102 - Favs: 337 - Follows: 486 - Updated: 6/4/2020 - Published: 10/11/2014 - E. Buck, Rookie, Saren A., Shepard
by ResurgentClone reviews
The Lucian Alliance is defeated, the line has been held against the Wraith in orbit around Earth. Now it's time for Atlantis to yield it's secrets.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 14 - Words: 27,003 - Reviews: 293 - Favs: 437 - Follows: 598 - Updated: 6/2/2020 - Published: 9/26/2012
A Brutal Reality
by BIG Z1776 reviews
NOW BEING REWRITTEN. The Colonials have just started taking their first steps into a much larger galaxy where danger, friends, and the unknown lie around every corner. And Earth has now taken the next huge step into the galaxy and its rise to superpower is all but inevitable. So what's to stop them? Old enemies from the past thought to be gone and new ones not yet seen.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 31 - Words: 180,663 - Reviews: 514 - Favs: 592 - Follows: 730 - Updated: 3/12/2020 - Published: 2/15/2015
Battlestar Galactica:New Beginnings
by Phoenix4416 reviews
The Graystones survived in secrecy preparing for the Cylons possible return, then one day 40 years after armistice was signed, the Cylons launched their assault on the Colonies. Would their preparations be enough to turn the tide of war? Would the Colonials be forced to run and if they did would more survive? Chapters 1-15 updated 08/01/2020. The rest to be updated ASAP
Crossover - Battlestar Galactica: 2003 & Caprica - Rated: T - English - Sci-Fi/Family - Chapters: 21 - Words: 233,952 - Reviews: 111 - Favs: 184 - Follows: 218 - Updated: 12/25/2019 - Published: 5/29/2012 - W. Adama, Zoe G.
The Terminus Conflict
by mad0slayer reviews
The Council liked their peace behind there Mighty fleets they were not ready for them, The Federation new but tested, they were young but skilled and sufficiently advanced. They thaught themselves better to lead. They would be surprised. The Warlords thaught themselves powerful and Unbeatable they were not ready for a new Enemy. They would wage war. But none were ready for Humanity
Mass Effect - Rated: M - English - Chapters: 8 - Words: 44,086 - Reviews: 43 - Favs: 182 - Follows: 250 - Updated: 10/17/2019 - Published: 7/9/2019
The Catalyst For Revenge
by Jade Tatsu reviews
Shepard chose to destroy Sovereign. The Council then declared war on the SA for that betrayal. The Humans tried to fight but it was a losing battle. Subjugation leading to extinction was not acceptable for making the hard military decision so the Humans chose another path and made a deal with the Reapers. The galaxy and the Cycle would never be the same. AU Eternity beckons.
Mass Effect - Rated: T - English - Adventure/Drama - Chapters: 162 - Words: 1,180,028 - Reviews: 4611 - Favs: 1,726 - Follows: 1,607 - Updated: 10/10/2019 - Published: 10/10/2016 - Ashley W., Illusive Man, Harbinger, Shepard - Complete
Valley of Darkness (The War in Heaven, Book I)
by QuantumSheep reviews
The galaxy is in a state of relative calm. Earth has been safe from alien threats for over a decade. Some old friends and a few new faces are called together for an important mission, only for events to rapidly spin out of control. Foes, both new and old, make themselves known. Nothing will ever be the same again.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 52 - Words: 249,131 - Reviews: 39 - Favs: 53 - Follows: 64 - Updated: 9/20/2019 - Published: 5/20/2019 - D. Jackson, OC - Complete
Stargate Millennium: Truth
by StargateMillennium reviews
A new spin-off series: With their new 305 Typhon, the team returns to Millennium with questions that need answering. But sometimes the truth is not what you want to hear and sometimes answers bring up more questions.
Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 29,900 - Reviews: 7 - Favs: 3 - Follows: 8 - Updated: 8/31/2019 - Published: 2/26/2019 - Complete
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: 1405 - Favs: 2,538 - Follows: 3,043 - Updated: 6/11/2019 - Published: 1/26/2014
Apostle's Message Redux
by Lone-ranger1 reviews
When the Reapers see the threat Shepard poses, they enact a backup plan millions of years old. A single Reaper will unleash his fury and two galaxies will never be the same. (New Chapter 13/12/16)
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 38 - Words: 435,721 - Reviews: 376 - Favs: 414 - Follows: 530 - Updated: 5/29/2019 - Published: 8/18/2011 - S. Carter, Shepard
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: 54 - Words: 347,701 - Reviews: 1352 - Favs: 1,610 - Follows: 1,617 - Updated: 5/29/2019 - Published: 7/25/2015 - Complete
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: 353 - Favs: 410 - Follows: 510 - Updated: 5/10/2019 - Published: 12/22/2016
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: 65 - Favs: 354 - Follows: 527 - Updated: 4/15/2019 - Published: 5/8/2017 - J. Garson, Admiral Hackett, Shepard, OC
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: 40 - Words: 176,374 - Reviews: 816 - Favs: 1,574 - Follows: 1,484 - Updated: 3/4/2019 - Published: 12/1/2011 - Jorge-052/Noble Five, Shepard - Complete
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: 829 - Favs: 1,309 - Follows: 1,552 - Updated: 12/5/2018 - Published: 7/4/2015
Merged Galaxy Part 1: Tenuous Pacts
by Slipspace Anomaly reviews
Nations collide as 2 alternate versions of the Milky Way Galaxy are joined into 1. As members of the SGC and the UNSC struggle to establish peaceful relations, a new threat emerges. One that includes new enemies from each of their pasts. Co-written with Jon Harper.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Chapters: 21 - Words: 164,926 - Reviews: 219 - Favs: 344 - Follows: 432 - Updated: 10/8/2018 - Published: 1/30/2017 - H. Maybourne, OC, Master Chief/John-117, C. Halsey
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: 33 - Words: 279,720 - Reviews: 777 - Favs: 757 - Follows: 862 - Updated: 10/6/2018 - Published: 8/28/2012
Battlestar Galactica: Wolfpack
by Phoenix4416 reviews
Part of the New Beginnings and Lions of Leonis. The Battlestar Pegasus and her small fleet of Battlestars, having escaped destruction at the hands of the Cylons during the Fall, must find a way not only to survive but to fight back. This isn't just about survival, it's about revenge. Also a crossover with the BSG Ghosts comics and Blood and Chrome. Next chapter up by 08/07/15.
Crossover - Battlestar Galactica: 2003 & Caprica - Rated: T - English - Sci-Fi/Tragedy - Chapters: 6 - Words: 135,191 - Reviews: 42 - Favs: 65 - Follows: 57 - Updated: 8/3/2018 - Published: 4/9/2014 - H. Cain
Stargate Atlantis: Inheritance
by TimeWolfBadLord reviews
If you're bummed about the show ending without a conclusion, this story is for you. Takes place some time after the events of the movie that never was...
Stargate: Atlantis - Rated: K - English - Adventure/Sci-Fi - Chapters: 22 - Words: 149,767 - Reviews: 39 - Favs: 83 - Follows: 102 - Updated: 5/7/2018 - Published: 4/23/2016
Contact of Races
by wilkins75 reviews
Sequel to Contact at Kobol (Stargate/Battlestar). The Race has thrived for hundreds of thousands of years and who recently conquered their 5th world are heading toward Tosev 3, Earth believing the conquest to be ease against the sword swing savages. Little do they know that those sword swing savages are now one of if not the most powerful force in the Galaxy, the Tau'ri.
Crossover - Stargate: SG-1 & Worldwar series - Rated: T - English - Sci-Fi/Drama - Chapters: 25 - Words: 210,603 - Reviews: 1203 - Favs: 964 - Follows: 884 - Updated: 4/3/2018 - Published: 6/17/2017 - S. Carter - Complete
Origins of Humanity
by Aussie reviews
AU SG from mid Season 2. What would happen if SG1 gated to Caprica, three years before the Cylon Attack on the Colonies. What would happen if the SGC had access to the Colonies' industrial might early on in their fight against the Goa'uld!
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 23 - Words: 91,451 - Reviews: 288 - Favs: 372 - Follows: 489 - Updated: 1/24/2018 - Published: 1/8/2007
by GreaterGoodIreland reviews
The mass effect ended the last world war amid a new ice age, bringing a new dawn to humanity. The turians were humbled and the batarians crushed. With our place firmly secured by acts of military audacity, Shepard's discovery on Eden Prime leads to the revelation of the ultimate enemy and the destiny of humanity itself. AU Mass Effect with the background of Battlefield 2142 - HFY -
Mass Effect - Rated: M - English - Drama/Adventure - Chapters: 47 - Words: 289,128 - Reviews: 314 - Favs: 645 - Follows: 694 - Updated: 11/7/2017 - Published: 11/12/2014 - [Liara T'Soni, Shepard] Hannah S., OC - Complete
Fallen Heroes: Book One Version 2
by SeanKR reviews
The Survivors of the Twelve Colonies of Kobol are searching for what they believe is the long lost thirteenth tribe on a planet known as Earth. The first clues on their journey are found on the long lost mother planet for them Kobol. Heading into an area of space where they believe they will find Earth and hopefully sanctuary and a new start while on the run still from the Cylons.
Crossover - Stargate: Atlantis & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 3 - Words: 26,696 - Reviews: 39 - Favs: 121 - Follows: 183 - Updated: 9/13/2017 - Published: 9/16/2013
StarGate: Galactic Imperium
by VexMaster reviews
What if someone from our universe goes to the Stargate universe with everyting we know about it? He will build an empire unlike any other before it. 1st person POV and POV from SG-1. A massive crossover!
Stargate: SG-1 - Rated: M - English - Sci-Fi/Fantasy - Chapters: 131 - Words: 786,594 - Reviews: 3383 - Favs: 2,613 - Follows: 2,443 - Updated: 7/27/2017 - Published: 1/22/2009
by zagor03 reviews
A few years before the fall of the Colonies a plan was put in motion in case the Cylons returned and destroyed everything; in order to ensure the survival of humanity. Operation Exodus starts a year and a half before the fall of the twelve colonies...
Battlestar Galactica: 2003 - Rated: K - English - Sci-Fi/Tragedy - Chapters: 37 - Words: 273,756 - Reviews: 224 - Favs: 349 - Follows: 330 - Updated: 3/20/2017 - Published: 8/11/2011 - Complete
The 13th Tribe - OLD
by The Lone Dark Jedi reviews
Earth is lost, a population of 7 Billion is now 3 Million. None of our Allies have room for us. And our people are dying in the acid rain of Earth. However a light is visible in the Darkness. A place where the Tau'ri can rebuild. The Tribes of Kobol offer a refuge for the bloodied children of Earth.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 7 - Words: 34,145 - Reviews: 79 - Favs: 158 - Follows: 230 - Updated: 2/14/2017 - Published: 12/29/2014 - S. Carter, R. Woolsey, R. McKay, W. Adama
Stargate: The Second Great Alliance
by Seraphin2011 reviews
With the Second Great Alliance finally being formed, the Guardians, the Terrans, the Asgard and the Nox are set out to bring everlasting peace and prosperity to the region of space they inhabit. A task not easy to accomplish when faced by so many, old and new, enemies constantly trying to destroy them with every means at their disposal.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 42 - Words: 458,330 - Reviews: 766 - Favs: 694 - Follows: 608 - Updated: 1/5/2017 - Published: 9/14/2012 - J. O'Neill - Complete
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: 248 - Favs: 623 - Follows: 832 - Updated: 12/31/2016 - Published: 6/25/2016
Halo-Mass Effect: Altered-Destiny (Discontinued)
by Azores reviews
This story has been discontinued. Thank you everyone for all the support you've shown! It really means a lot. -Azores
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 15 - Words: 100,046 - Reviews: 356 - Favs: 693 - Follows: 869 - Updated: 12/15/2016 - Published: 1/25/2015 - J. Cutter, P. Cole, U. Wrex, Aria T'Loak
The Long Way Home
by Humphrey66th reviews
A young boy witnesses the arrival of explorers from a place called Atlantis. His curiosity ends up taking him places he only ever dreamed about. But dreams can be nightmares, and he ends up far, far from home.
Stargate: Atlantis - Rated: T - English - Adventure/Sci-Fi - Chapters: 32 - Words: 68,351 - Reviews: 23 - Favs: 13 - Follows: 12 - Updated: 10/10/2016 - Published: 3/5/2016 - Complete
Mass Effect: First Contact CODEX
by Kralizec314 reviews
A codex for my AU Story, Mass Effect: First Contact, which has yet to be posted.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 14 - Words: 31,712 - Reviews: 129 - Favs: 131 - Follows: 120 - Updated: 9/29/2016 - Published: 3/7/2016
by NorJC reviews
A Raptor discovers far more than a barely habitable planet inside a nebula after the small craft misjumps during Starbuck's search and rescue mission back to Caprica to retrieve Anders and his people. This is an AU from "Lay Down Your Burdens Part 1" and a crossover with "The Fleet" military/sci-fi anthology series by Bill Fawcett and David Drake.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 34 - Words: 119,525 - Reviews: 328 - Favs: 323 - Follows: 374 - Updated: 9/25/2016 - Published: 12/15/2013 - W. Adama, L. Roslin, D'Anna B., M. Edmondson/Racetrack
We need a Miracle
by six samurai of dragon order reviews
They say when a miracle is needed most, it appears. But, what if the miracle that humanity needed most to survive the war didn't happened. What if they had a plan B? What if they had to leave known space to survive the covenant? Humanity lost the war A/U.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 30,960 - Reviews: 62 - Favs: 221 - Follows: 298 - Updated: 9/7/2016 - Published: 10/13/2014 - Master Chief/John-117, C. Halsey, Councilor Valern
The New Order of Tribes
by Talphon44 reviews
A different look at what happened when the Galactica arrived at Earth. The Battlestar will set in motion a series of events that will rock the foundation of not just one civilization but multiple ones. This is my first attempt at fan-fiction, but I intend to follow through on what hopefully will be a very long story, one of many that will take place in this universe.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 49,714 - Reviews: 297 - Favs: 487 - Follows: 710 - Updated: 9/5/2016 - Published: 12/14/2015
by Dave19941000 reviews
A small stretch of the truth by an enemy long thought gone leads to a clash of worlds. With Earth unwilling to let an attempted invasion slide and the Colonials having lost too much blood to back down, it seems worlds burning is inevitable. Just as planned.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 50 - Words: 233,825 - Reviews: 414 - Favs: 361 - Follows: 443 - Updated: 8/23/2016 - Published: 8/18/2014 - Complete
by casquis reviews
Space is infinite, but under the right conditions even a galaxy can feel too small.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 51,961 - Reviews: 260 - Favs: 401 - Follows: 555 - Updated: 8/19/2016 - Published: 10/12/2015
Battlestar Xanthi: A collection of memories
by Commmander Nash reviews
The Colonies of Man have fallen. And for those left behind on the twelve ruined worlds, there is only one hope...a Battlestar named Xanthi. But where did this ship come from ? What made it the vessel that it is today ? Read on and find out.
Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi - Chapters: 12 - Words: 22,702 - Reviews: 13 - Favs: 24 - Follows: 25 - Updated: 8/6/2016 - Published: 8/4/2012 - Complete
by Andrithir reviews
As the war against the Covenant takes another turn, humanity must confront a wider galactic community beyond the known regions. (Currently being reworked and edited 20/03/2017) New version posted as Shadow Contingency (v2) - (10/06/2019)
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 55,400 - Reviews: 72 - Favs: 255 - Follows: 307 - Updated: 7/1/2016 - Published: 7/15/2015 - Master Chief/John-117, J. Garson
A Technological Singularity
by 6thfloormadness reviews
AU. How did the Borg Collective come to be? What if the Systems Alliance had the Borg as allies during The First Contact War?
Crossover - StarTrek: Voyager & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 22 - Words: 125,715 - Reviews: 536 - Favs: 891 - Follows: 1,045 - Updated: 6/21/2016 - Published: 10/3/2011
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: 3508 - Favs: 5,948 - Follows: 6,847 - Updated: 5/22/2016 - Published: 10/13/2011 - Tali'Zorah
by doctor chocolate thunder reviews
The ORI have been defeated and Atlantis is in fast action on mars. Earth is aware of the stargate now and has begun to embrace its roll. Meanwhile in Pegasus New Lantea is also in full swing fighting the Wraith, But daniel and SG-1 have a new mission. A mission that could change the pegasus galaxy and the whole universe. both stargates bsg and The matrix will get time here
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi/Suspense - Chapters: 12 - Words: 89,292 - Reviews: 89 - Favs: 192 - Follows: 196 - Updated: 4/21/2016 - Published: 2/28/2013 - D. Jackson - Complete
Worldwar: Missionaries Down to Earth
by AlbertG reviews
The Race has been freed from from the grip of Colonial conquest in less than two weeks. The writing is on the wall and now The people of Kobol must make nice with monotheistic Earth. How can they do that? Well, send missionaries! Book III-Colonials to the 13th colony, er Earth!
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 15 - Words: 93,138 - Reviews: 404 - Favs: 507 - Follows: 450 - Updated: 2/29/2016 - Published: 12/8/2014 - Complete
by Dave19941000 reviews
With the discovery of a new trans-galactic gate coordinate, Star Gate Command forms a new expedition to the Triangulum Galaxy. But where the Ancients went trouble always followed, and the Triangulum Expedition finds themselves facing one unlike any the Milky Way or Pegasus galaxy had to offer.
Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 18,175 - Reviews: 33 - Favs: 77 - Follows: 111 - Updated: 12/10/2015 - Published: 11/30/2014 - OC
SG: Saga of the new Alterran Empire: Book 1 Earth
by Malicious World Builder reviews
When a Jaffa completes a Goa'uld experiment it's time for the Alterra (Ancients) to rise again. Old threats rise again while new lurk in the shadows ready to strike before the Alterra have a chance to get of their feet. Due to large holes in the story's plot armour character death is to be expected. "Book 2: Goa'uld" was 50% done when the first chapter of this story was posted.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 51,065 - Reviews: 36 - Favs: 115 - Follows: 129 - Updated: 11/9/2015 - Published: 5/25/2015 - D. Jackson, J. O'Neill, Teal'c, OC - Complete
Halo The Evolution Continues
by UNSpaceCommand reviews
First time Crossover. Constructive Critic welcome. Enjoy and pls Review. Chapter 27 is up. A long lost ship is returning home but it seems fate have a decision to make a mess of things. Looking for Beta Reader. On Haitus
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 27 - Words: 56,469 - Reviews: 323 - Favs: 490 - Follows: 550 - Updated: 10/14/2015 - Published: 9/22/2011
The Spirit of Thessia
by NewWorldFiction reviews
For several decades the Spirit of Fire has lumbered through the empty void to find not the UNSC, but something terrible: The destruction of the newly space faring civilization of the Asari by the hands of the Batarian Hegemony, a slaver species. Now, forced into a war that is impossible to win, the crew will face insurmountable odds against a enemy that cannot be beat. One-shot.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 2 - Words: 14,755 - Reviews: 44 - Favs: 227 - Follows: 148 - Updated: 10/12/2015 - Published: 7/29/2015 - Complete
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: 1662 - Favs: 1,597 - Follows: 1,470 - Updated: 2/20/2015 - Published: 10/8/2011 - Master Chief/John-117, Shepard - Complete
Stargate: The Million Year War
by W1553 reviews
When the city of the Ancients realises that it has returned to Earth, for the first time in several million years, plans laid out during the only war the real Ancients where losing starts to unravel. First story I've every written. Please read and review. (WIP)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Sci-Fi - Chapters: 34 - Words: 158,378 - Reviews: 222 - Favs: 288 - Follows: 349 - Updated: 2/17/2015 - Published: 5/20/2013 - D. Jackson, J. O'Neill, Rodney M., John S.
The Impossible Life of Preston J Cole
by FuzyDr4G0NZ reviews
Many people thought Admiral Cole died during the Battle of Psi Serpentis. What if he didn't?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 9,726 - Reviews: 128 - Favs: 198 - Follows: 271 - Updated: 2/4/2015 - Published: 6/10/2013 - P. Cole, Admiral Hackett
The Long War
by United Systems Navy reviews
After the destruction of the Twelve Colonies the last surviving colonial ships band together in a small fleet. Rather than chase after the Galactica to find Earth they choose to stay behind and fight on against the cylons in a long, brutal war across the cold corpses of civilization.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Tragedy - Chapters: 37 - Words: 177,200 - Reviews: 161 - Favs: 146 - Follows: 170 - Updated: 1/25/2015 - Published: 8/13/2012
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: 981 - Favs: 1,316 - Follows: 1,611 - Updated: 1/23/2015 - Published: 9/19/2013
The Ongoing Journey
by Senrab Nomis reviews
Atlantis has been on Earth for two months. Now the gang are eager to get back to Pegasus and to take the city they call home with them. But the Pegasus galaxy has more secrets than they imagine and many hidden threats. They will soon learn there are things hiding in the shadows that they never expected to encounter. AU. Chapter 1 now rewritten.
Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 90 - Words: 447,198 - Reviews: 888 - Favs: 503 - Follows: 527 - Updated: 12/25/2014 - Published: 8/14/2010
The Journals of the Battlestar Telmaya
by Sage1988 reviews
After the Fall of the Colonies another fleet gathers, led by the Colonial Academy Training ship Aristotle. Now renamed Telmaya she and her crew of cadets must rise to the challenges they now face and survive the fires of war.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 32 - Words: 91,630 - Reviews: 232 - Favs: 280 - Follows: 211 - Updated: 12/10/2014 - Published: 1/16/2009 - Complete
Drake and the continuation of the Lantean-Wraith war (WIP)
by W1553 reviews
Just for fun. Written on a mobile, so it's more than a bit sloppy. When yet another Wraith fleet marches upon Atlantis McKay has everyone capable of reading Ancient running around the city looking for a way of defending the city. But have they found more than they bargained for?
Stargate: Atlantis - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 18,896 - Reviews: 8 - Favs: 23 - Follows: 22 - Updated: 12/9/2014 - Published: 7/19/2014
The Chosen One
by AliZoe reviews
Taken from Atlantis, the Wraith homeworld, and other various planets, "The Chosen One" gives some history of the Wraith and the war with Atlantis. Then, transporting to the future, the Atlantis Expedition makes a discovery that will change the course of Wraith and Humanity alike in the Pegasus Galaxy. Including original characters on all spectrums.
Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 10 - Words: 57,854 - Reviews: 13 - Favs: 26 - Follows: 33 - Updated: 11/9/2014 - Published: 6/23/2014 - Todd, OC
Fall of the Gods Book 1: Colonials on the Run Redux
by Scourge75 reviews
A dark past. A desperate race. A forced alliance. The return of a race long forgotten. The effects that no one could've foreseen. - OCs galore! Major rewrites from previous post. New chapter will be posted every weekday.
Crossover - Battlestar Galactica: 2003 & Stargate: SG-1 - Rated: T - English - Adventure/Supernatural - Chapters: 42 - Words: 395,451 - Reviews: 158 - Favs: 189 - Follows: 175 - Updated: 11/7/2014 - Published: 9/12/2014 - S. Carter, J. O'Neill, W. Adama, L. Roslin - Complete
For Fleet and Flotilla - ON PERMANENT HIATUS
by CAS2109 reviews
When the crew of the BattleStar Hades discover unknown debris and a massive structure while on the run from a Cylon fleet, they find themselves thrown onto the galactic stage. How will they adapt to the new challenges thrown at them? Will they ever retake the colonies? Or will they find themselves drawn to a certain race of nomads who share their hate of Artificial Intelligence?
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 39,552 - Reviews: 73 - Favs: 176 - Follows: 238 - Updated: 10/23/2014 - Published: 1/13/2014 - OC, Tali'Zorah, Admiral Hackett
WorldWar: The Balance Destroyed
by AlbertG reviews
The 'Race', and the Colonials of Cyrannus each tried to conquer Earth. They both failed. The Race has a new colony now. The Colonials haven't finished yet. It's a bad combination all around because everyone's stubborn. Welcome to the galaxy at large.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi/Fantasy - Chapters: 30 - Words: 148,076 - Reviews: 795 - Favs: 707 - Follows: 600 - Updated: 10/11/2014 - Published: 3/16/2010 - Complete
The Lost Tribe
by wilkins75 reviews
during the victory tour celebrating five years since the end of thee Reaper war, the Normandy travels to the Cronian Nebula to let Javik put the ghost of his dead team to rest only to discover something that will rewrite history of not just humanity but the galaxy as a whole. Male solider Sheppard/Ash
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 59 - Words: 206,051 - Reviews: 801 - Favs: 561 - Follows: 504 - Updated: 7/12/2014 - Published: 7/20/2012 - Shepard - Complete
by Fabius Maximus reviews
Set after Season 7 of SG1 and Before the Battlestar Galactica miniseries, two people's are about to discover that they have to radically reassess how they and the larger universe interact.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Drama - Chapters: 11 - Words: 20,540 - Reviews: 172 - Favs: 263 - Follows: 390 - Updated: 6/29/2014 - Published: 4/14/2013
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: 658 - Favs: 1,022 - Follows: 1,313 - Updated: 4/30/2014 - Published: 12/22/2012
by StargateGenesis reviews
Battle-hardened Stargate team SG-13 finds themselves trapped in a parallel universe where the Goa'uld were never defeated. UPDATE: Episode Three added 4/16/14.
Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 9,721 - Reviews: 7 - Favs: 2 - Follows: 9 - Updated: 4/16/2014 - Published: 3/12/2014 - D. Jackson, C. Kawalsky
SGA: The Return 2 Pegasus
by ripplestone reviews
Two thousand years after SG Atlantis returned to Earth, Pegasus Galaxy is no longer in the grip of the Wraith. One thousand years after his death, Todd's dream of a stable gene therapy removing Wraith hunger was finally realized. Now, after centuries of peace, a new threat is emerging from an old foe. Will Atlantis and her crew return from deep stasis on Earth to stop the Genii?
Crossover - Stargate: Atlantis & Stargate: Universe - Rated: T - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 17,999 - Reviews: 15 - Favs: 6 - Follows: 14 - Updated: 4/3/2014 - Published: 2/4/2014 - John S., Teyla E., Todd, Col. D. Telford - Complete
The Last Imperial Fleet
by Fabius Maximus reviews
The Virgon Imperial Navy is but a shadow of what it once was...but when all other fleets fall, the fleet must protect the memory of Virgon and te Colonies. Takes place in the "Pirate King" story setting.
Battlestar Galactica: 2003 - Rated: T - English - Drama - Chapters: 7 - Words: 14,688 - Reviews: 39 - Favs: 92 - Follows: 91 - Updated: 3/11/2014 - Published: 3/6/2014
by Joker6623 reviews
The 213th Misfits Squadron is known throughout the Fleet as a place for the rejects and unwanted. The pilots, especially Lieutenant Lee Hawley, want nothing more than to serve their enlistments and get out. Once the war begins, the Misfits are thrust into the fighting and through a series of extreme events they become the most experienced and revered pilots in the entire Fleet.
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 44,748 - Reviews: 23 - Favs: 32 - Follows: 32 - Updated: 3/6/2014 - Published: 4/5/2013
The Pirate King
by Fabius Maximus reviews
The Colonies locked themselves in after the Armistice. Not everyone is okay with that. Unfortunately, they'll find that their plans are derailed by the Destruction of the Colonies and their fight for survival...
Battlestar Galactica: 2003 - Rated: T - English - Drama - Chapters: 9 - Words: 21,174 - Reviews: 35 - Favs: 100 - Follows: 69 - Updated: 3/1/2014 - Published: 2/24/2014 - Complete
Stargate Atlantis: Unexpected Arrival
by summoner2100 reviews
A slow start to the morning finds the team coming into contact with a previously unknown vessel, as well as, Sam's annoyance at Dr Zelenka..
Stargate: Atlantis - Rated: K - English - Sci-Fi - Chapters: 6 - Words: 15,147 - Reviews: 13 - Favs: 10 - Follows: 20 - Updated: 1/19/2014 - Published: 7/6/2012 - S. Carter/Sam
by Blad3Zer0 reviews
Never had the Cylons truly been challenged after the first rebellion. Yet when they discover a ship from the Thirteenth Tribe, they unwittingly step in the midst of a galactic war, with only a single, unlikely human to guide them safely through this Great Journey.
Crossover - Halo & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Mystery - Chapters: 10 - Words: 43,518 - Reviews: 115 - Favs: 184 - Follows: 274 - Updated: 12/20/2013 - Published: 6/26/2008 - OC, Number Six, D'Anna B., S. Valerii/Boomer
by stephenopolos reviews
Follow the journey of the Alteran people (and a young man named Tav) as they cross the distance between their former home and their future.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 25,090 - Reviews: 17 - Favs: 33 - Follows: 45 - Updated: 12/2/2013 - Published: 3/7/2013
Reunions are a Deleted
by Bob Regent reviews
Name amended due to guidelines. A clash of ideologies will cause widespread death and destruction for two races both alike and strange to the other. SG1nBSG xover
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 27 - Words: 349,784 - Reviews: 1015 - Favs: 1,439 - Follows: 1,386 - Updated: 11/23/2013 - Published: 5/19/2007
by SkywalkerT-65 reviews
This is a story set in an AU universe where the Ori win. Faced with certain death and destruction, the last two Tau'ri warships, Deadalus and Prometheus, use a dangerous Ancient device to try and fix this disaster. But who knows what can happen when you play with the timeline... In process of rewriting.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Drama - Chapters: 13 - Words: 38,964 - Reviews: 148 - Favs: 182 - Follows: 238 - Updated: 10/15/2013 - Published: 6/10/2012 - Complete
Dust of the Stars
by bryan0711 reviews
The Colonies believed themselves alone in the galaxy. The Cylons were their only enemy. After a confrontation between the Valkyrie BSG and Ha'tak motherships the Colonies are thrown onto the galactic scene, unprepared, for an inevitable confrontation...
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 24 - Words: 323,498 - Reviews: 348 - Favs: 461 - Follows: 510 - Updated: 9/12/2013 - Published: 4/5/2010 - J. O'Neill, W. Adama
by Rap541 reviews
Sequel to Going Native. Its a few years later, lets see what happened
Battlestar Galactica: 2003 - Rated: K+ - English - Chapters: 23 - Words: 52,617 - Reviews: 416 - Favs: 575 - Follows: 670 - Updated: 9/6/2013 - Published: 3/9/2010
Part 2: Star Trek TOS: A Different Perspective
by Ariston-1 reviews
Part two: A Century after the Bio-Weapon attack on a Romulan Planet by the USS North-Gate, A desperate search for a cure is launched by Starfleet & Romulus. Given command of the Enterprise, an unprooven yet bold young Captain named Kirk is given the task of curing the plague with the help of a plague expert, Doctor Leonard McCoy, son of Dr. David McCoy of the USS Challenger.
StarTrek: The Original Series - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 32,485 - Reviews: 11 - Favs: 4 - Follows: 9 - Updated: 5/26/2013 - Published: 5/4/2013 - J. Kirk, L. McCoy, Spock - Complete
by Nck Y reviews
A year before the Fall, a group of battlestars were sent out to do reconnaissance against the Cylons. Little do they know that...well, I won't spoil it for you. This is their story. Reviews are appreciated.
Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 16,619 - Reviews: 26 - Favs: 28 - Follows: 32 - Updated: 4/3/2013 - Published: 12/26/2012
Embers of War
by ChaoslordZX reviews
As the Cylon war ends bringing peace to the twelve colonies the Covenant war begins, blanketing the UNSC and her colonies in brutal warfare. While two ships from both sides are on a simple patrol they cross paths. This event draws both ships into a world of political secrets and intrigue as well as a horrifying war against a ruthless enemy. Early Halo/Blood and Chrome era x-over
Crossover - Halo & Battlestar Galactica: 2003 - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 46,576 - Reviews: 83 - Favs: 94 - Follows: 103 - Updated: 3/10/2013 - Published: 11/14/2012
Over the Horizon
by Glennfiddich12 reviews
While on missions of discovery, two cultures meet and must face the challenges of their enemies and their pasts together. A Battlestar Galactica/Stargate crossover.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Drama/Adventure - Chapters: 10 - Words: 197,463 - Reviews: 422 - Favs: 591 - Follows: 719 - Updated: 12/31/2012 - Published: 2/22/2010
by Nagato21 reviews
Having never realized the importance of the Stargate, humanity took it's first steps across the stars.Three centuries later, the Terran Alliance encounters the Goauld Empire, sparking a war of galactic proportions to free all sentient life from tyranny.
Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 28,790 - Reviews: 36 - Favs: 97 - Follows: 114 - Updated: 11/26/2012 - Published: 10/24/2012
by vliegenvanger reviews
a spin off from the Alliance wars. the story of a crew finding itself cut off from their homes and forced to deal with it. Now on permanent hold
Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 10,843 - Reviews: 6 - Favs: 23 - Follows: 36 - Published: 10/3/2012
by BSGfan32 reviews
A retired Admiral helps to save a large segment of the Colonies and ends up leading them on a journey following in Galactica's wake. What will they find along the way and what happens when the 2 fleets meet up?
Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Drama - Chapters: 19 - Words: 34,511 - Reviews: 130 - Favs: 209 - Follows: 222 - Updated: 9/21/2012 - Published: 10/3/2008
Return to Earth
by NOVARAY reviews
What happens when Admiral Adama makes a trip to Earth to discover what happened to the colony they left 150,000 years in the past?
Battlestar Galactica: 2003 - Rated: K - English - Sci-Fi - Chapters: 4 - Words: 19,861 - Reviews: 69 - Favs: 90 - Follows: 71 - Updated: 9/19/2012 - Published: 6/15/2012
The Farthest Ones From Home
by robertp6165 reviews
What if New Caprica had never been discovered, creating a chain of events which lead the survivors of the Twelve Colonies of Kobol to encounter the 58th Squadron, USMC Space Aviator Cavalry, in the Procyon System in 2064?
Crossover - Space: Above and Beyond & Battlestar Galactica: 2003 - Rated: M - English - Sci-Fi/Adventure - Chapters: 48 - Words: 87,220 - Reviews: 108 - Favs: 106 - Follows: 110 - Updated: 9/2/2012 - Published: 6/13/2011
Gone for Good
by mserra109 reviews
Sequel to 'The Forgotten', thirty years after the Holocaust, the Colonial survivors confront the thought-gone Cylon threat and resume the search for the fabled thirteenth colony.
Battlestar Galactica: 2003 - Rated: T - English - Chapters: 2 - Words: 1,854 - Reviews: 17 - Favs: 18 - Follows: 29 - Updated: 8/28/2012 - Published: 7/28/2012 - L. Adama/Apollo, K. Thrace/Starbuck
SGA: The Great Tau'ri War Pt 1: Darkness Rising
by Ariston-1 reviews
After the arrival of Atantis on Earth, news of the Stargate Program is broken to the public. in 2013 The Great Tau'ri War spreads across Earth as nations fight to control the Ancient City of Atlantis as the war spreads off-world. AU
Stargate: Atlantis - Rated: M - English - Adventure/Sci-Fi - Chapters: 10 - Words: 21,478 - Reviews: 5 - Favs: 12 - Follows: 10 - Updated: 8/20/2012 - Published: 7/18/2012 - John S. - Complete
Stargate: The Guardian's Order
by Seraphin2011 reviews
The story follows the advantures of Liam, an Alterran who decides to leave the higher plane of existance in order to take care of the many mistakes his race made before ascending.
Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 266,741 - Reviews: 266 - Favs: 785 - Follows: 529 - Updated: 8/6/2012 - Published: 4/16/2012 - J. O'Neill - Complete
Gods and Arias
by thedandersen reviews
While many have forgotten about the first Cylon war during the armistice, the colonial fleet still stands guard. For Commander Scott Mason and the crew of the Battlestar Aria, their greatest challenge yet comes from an unexpected source. AU leading up to the events of the miniseries/author's original characters/some series characters
Battlestar Galactica: 2003 - Rated: M - English - Adventure/Romance - Chapters: 11 - Words: 62,101 - Reviews: 18 - Favs: 23 - Follows: 18 - Updated: 7/17/2012 - Published: 4/30/2012 - Complete
Mass Effect New Origins V2
by erttheking reviews
On the dawn of the 27th century, the UNSC discovers a Mass Relay, and unlock its power. What follows not only includes making contact with new species and making new friends, but making new enemies as well, and the entire galaxy will shake.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 109 - Words: 442,687 - Reviews: 2612 - Favs: 1,907 - Follows: 1,371 - Updated: 6/9/2012 - Published: 10/5/2010 - J. Garson - Complete
by Mark Renshaw reviews
According to Starfleet records, the USS Voyager and her crew returned home on Stardate 54973.4. Unofficially, a ship bearing the name Voyager suddenly appeared in the Alpha Quadrant almost a year before this date. Starring characters from all ST Shows!
Crossover - StarTrek: The Next Generation & StarTrek: Voyager - Rated: K+ - English - Sci-Fi - Chapters: 12 - Words: 42,423 - Reviews: 22 - Favs: 25 - Follows: 47 - Updated: 5/8/2012 - Published: 9/10/2010
A New Dawn
by AlexanderD reviews
SG1, Atlantis, and SGU all work towards a brighter future. Past conflicts heat up more than imagined, and a long wondered question is answered. Ancients, Tauri, Asgard, Furling, and a few others thrown in. This ties up the loose ends the writers left us.
Stargate: Universe - Rated: T - English - Sci-Fi/Adventure - Chapters: 74 - Words: 295,200 - Reviews: 1412 - Favs: 899 - Follows: 606 - Updated: 4/16/2012 - Published: 4/29/2011 - Complete
Persuit of Outcasts
by Irish Nuisance reviews
Some demons are physical, others? Psycological. The small fleet is persued by many demons, but what happpens when they find a kindred soul among the stars? M for swearing and possible later violence.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: M - English - Sci-Fi/Suspense - Chapters: 1 - Words: 2,250 - Reviews: 5 - Favs: 19 - Follows: 23 - Published: 4/13/2012
Noblest of the Noble
by wilkins75 reviews
Noble Six along with a group of UNSC marines and civilians got on the last transport off Reach. They crash land on New Caprica. Knowing that they don't have the supplies to last they went into Cryosleep when the Cylons come.M for Violence and Language
Crossover - Halo & Battlestar Galactica: 2003 - Rated: M - English - Sci-Fi/Adventure - Chapters: 41 - Words: 115,699 - Reviews: 456 - Favs: 561 - Follows: 367 - Updated: 2/27/2012 - Published: 9/23/2011 - SPARTAN-B312/Noble Six, W. Adama - Complete
Search for the Galactica
by NOVARAY reviews
A damaged Cylon Basestar returns to the Cylon home world with information about the Galactica. Now the surviving Colonials must mount a rescue mission.
Battlestar Galactica: 2003 - Rated: K+ - English - Sci-Fi - Chapters: 9 - Words: 46,992 - Reviews: 81 - Favs: 91 - Follows: 61 - Updated: 2/25/2012 - Published: 10/30/2011
A Grand Journey
by Shafter reviews
a rewrite and repost of babyboy349's Odysseys New Home.
Crossover - StarTrek: Voyager & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 10 - Words: 29,867 - Reviews: 138 - Favs: 216 - Follows: 258 - Updated: 10/3/2011 - Published: 8/16/2011
Mass Effect: The Reclaimers
by Left hand turn signal reviews
During the battle for Earth, a few UNSC soldiers make contact with a group of aliens, with their new allies they try to do all they can to save their species. Meanwhile, one of the remaining inner colonies, Shanxi, goes dark.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 13 - Words: 63,524 - Reviews: 196 - Favs: 402 - Follows: 482 - Updated: 6/9/2011 - Published: 8/13/2010 - J. Garson
Earth 2010 The Colonies of Kobol Reunited
by Firematt97 reviews
After years on the run from the Cylons, the last Colonial Battlestar named GALACTICA, has finally reached its destination. Safely shepherding the last remnants of humanity to the object of their long journey...Earth.
Battlestar Galactica: 2003 - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 115,819 - Reviews: 18 - Favs: 52 - Follows: 33 - Updated: 10/29/2009 - Published: 10/28/2009 - Complete
Stargate: Return of the Ancients, Pilot Episode
by Aer-ki Jyr reviews
After Season 5 conclusion... a pilot episode for what would be both a new series and a continuation of Stargate Atlantis. Assuming Enemy at the Gate never happened. Wormhole drive my eye!
Stargate: Atlantis - Rated: T - English - Adventure/Mystery - Chapters: 10 - Words: 15,354 - Reviews: 152 - Favs: 277 - Follows: 206 - Updated: 3/28/2009 - Published: 3/19/2009 - John S., R. Woolsey - Complete
by imjustaguy reviews
After over two millennia of separation humanity reunites among stars.
Battlestar Galactica: 2003 - Rated: T - English - Adventure/Drama - Chapters: 25 - Words: 58,213 - Reviews: 510 - Favs: 502 - Follows: 454 - Updated: 11/26/2007 - Published: 11/28/2004
Encounter At Dawn
by JA Baker reviews
As First Contact situations go, it could have gone better. But with the threat of the Wraith hanging over them the Colonials, Cylons and Tau'ri are just going to have to find a way to get along... Battlestar Galactica RDM Stargate Atlantis
Crossover - Stargate: Atlantis & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 35 - Words: 77,364 - Reviews: 722 - Favs: 565 - Follows: 369 - Updated: 10/9/2007 - Published: 3/14/2007 - John S., K. Thrace/Starbuck - Complete