Stargate: SG-1 Crossovers
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SG Universes at War by celian Cogitore reviews
In a parallel universe, the Tau'ri faces a bloody war between the Systems Lords Anubis and Apophis. The situation is affected by the arrival of a strange character: 'Gilgamesh, the King of Heroes'. The Golden King is looking for Hakuno Kishinami (F) his 'Master'... and woe to the one who will cross his way, that they are false gods or whole aliens civilizations.
Crossover - Stargate: SG-1 & Fate/stay night - Rated: T - English - Sci-Fi/Supernatural - Chapters: 2 - Words: 8,565 - Reviews: 8 - Favs: 81 - Follows: 115 - Updated: 10/18 - Published: 10/12 - [Hakuno K., Gilgamesh] J. O'Neill, Ba'al
The lone knight by d'elfe reviews
2010. Sequel to 'All Hail to the King'. Frances is the Keeper of Time, and she has accomplished many more travels through time ever since the fifth century where she met Arthur and his knights. Maybe now, time has come for her to shed loneliness behind, and trust a soul she'd known and lost long ago.
Crossover - King Arthur & Stargate: SG-1 - Rated: M - English - Romance/Angst - Chapters: 30 - Words: 119,461 - Reviews: 52 - Favs: 10 - Follows: 15 - Updated: 10/16 - Published: 9/25/2019 - Tristan, OC
Family Ties by bymak reviews
What happens when your baby gets stolen and ends up as the expert in Stargate, especially when you are not only an abnormal but Helen Magnus? (Nope, I'm not getting any better with summaries) (If you are re-reading this summary, the issues weren't spotted before. TY ;) ) [Mostly Helen/Will but also some Teslen]
Crossover - Stargate: SG-1 & Sanctuary - Rated: K+ - English - Hurt/Comfort - Chapters: 62 - Words: 386,489 - Reviews: 172 - Favs: 128 - Follows: 166 - Updated: 10/14 - Published: 11/10/2016 - [J. O'Neill, S. Carter] Helen M., Will Z. - Complete
Through the Gates of Babylon by Lord-Malaki2036 reviews
An Earth Alliance expedition stumbles upon a discovery that will change the history and the future of them and other races for the foreseeable future.
Crossover - Babylon 5 & Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 6 - Words: 49,691 - Reviews: 11 - Favs: 25 - Follows: 39 - Updated: 10/13 - Published: 10/10
Wormholes and Meteor Showers by Shall-Iin reviews
The SG team finds evidence of a lost race that the Goauld are unable to infest and who legend say are imbued with vast physical powers beyond those all other races. They seek information about the lost race on Earth, where there is evidence they might hav
Crossover - Stargate: SG-1 & Smallville - Rated: T - English - Adventure/Sci-Fi - Chapters: 31 - Words: 123,569 - Reviews: 316 - Favs: 292 - Follows: 402 - Updated: 10/12 - Published: 1/14/2006 - D. Jackson, J. O'Neill, Clark K./Superman, Pete R.
Stargate: Archangel, Pilot Episode by RogueTrace reviews
Jessica Martin encounters a Repository of the Ancients in the Colorado mountains, and begins her journey. This is the beginning of "Option 1" of the 5 that I've considered writing.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 1,768 - Reviews: 1 - Favs: 7 - Follows: 11 - Published: 10/11
Sam in Jabba's Palace by Failhammer reviews
After a mission went wrong, Sam became Jabba's newest slave. The hutt has now decided it is time the captive officer learns to dance for his pleasure.
Crossover - Star Wars & Stargate: SG-1 - Rated: T - English - Drama - Chapters: 1 - Words: 2,245 - Reviews: 3 - Favs: 4 - Follows: 5 - Published: 10/11 - Oola, S. Carter
Stargate: Neverwinter by Sarcasm Dragon reviews
SG-1 left one day through the Stargate to be lost in a shadowy accident. It was a year later that they returned, but a very different team. They had gone to a land of magic and power and returned with new strength, new allies, and magic. But will they be ready to face the challenges they brought with them from Neverwinter? AU Sequel to Stargate: Faerûn.
Crossover - Stargate: SG-1 & Neverwinter Nights - Rated: T - English - Adventure/Fantasy - Chapters: 2 - Words: 7,489 - Reviews: 35 - Favs: 61 - Follows: 85 - Updated: 10/5 - Published: 3/28/2013 - S. Carter, D. Jackson, J. O'Neill, Teal'c - Complete
Stargate: Universal Collision - Re-Upload by StrikeFreedom11 reviews
After a horrible hyperspace jump following the destruction of Orilla, SG-1, Stargate Command and Atlantis all find themselves facing a brand new universe as their own galaxy is irrevocably changed. New allies, new enemies and new challenges all await as universes collide with one another in a battle just to survive.
Crossover - X-overs & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 28,694 - Reviews: 1 - Favs: 26 - Follows: 32 - Published: 10/3 - S. Carter, J. O'Neill, Thor - Complete
Humanity's Resurgence - Re-Upload by StrikeFreedom11 reviews
Two different humanity's. Both pushed around by aliens for far too long. Together, they shall show this third universe that humanity is not to be underestimated.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 26,893 - Reviews: 3 - Favs: 42 - Follows: 46 - Published: 10/3 - S. Carter, J. O'Neill, Master Chief/John-117, T. Hood - Complete
Shattered Times and Timelines: Odyssey out of time by TimeTraveller-1900 reviews
AU By a strange twist of fate, a pre-warp ship appears through the Bajoran wormhole. Starfleet discovers the ship is the Odyssey, a ship from the Stargate Universe where a different series of events took place there. Containing the sum total of Asgard knowledge, Starfleet has a chance to change in ways nobody could have imagined.
Crossover - StarTrek: Deep Space Nine & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 12 - Words: 34,910 - Reviews: 145 - Favs: 267 - Follows: 345 - Updated: 10/1 - Published: 1/1 - Complete
Humanity's Resurgence by Strikefreedom10 reviews
Two different humanity's. Both pushed around by aliens for far too long. Together, they shall show this third universe that humanity is not to be underestimated.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 161 - Reviews: 94 - Favs: 234 - Follows: 279 - Updated: 9/30 - Published: 4/1/2019 - S. Carter, J. O'Neill, Master Chief/John-117, T. Hood - Complete
Stargate: Universal Collision by Strikefreedom10 reviews
After a horrible hyperspace jump following the destruction of Orilla, SG-1, Stargate Command and Atlantis all find themselves facing a brand new universe as their own galaxy is irrevocably changed. New allies, new enemies and new challenges all await as universes collide with one another in a battle just to survive.
Crossover - X-overs & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 161 - Reviews: 58 - Favs: 144 - Follows: 175 - Updated: 9/30 - Published: 8/19/2019 - S. Carter, J. O'Neill, Thor - Complete
Time's Odyssey by TimeTraveller-1900 reviews
A strange ship comes out of the quantum slipstream corridor after Voyager leaves it. Emerging into the universe after being chased by the Ori, the Odyssey has arrived in a time of great need. AU from Timeless.
Crossover - StarTrek: Voyager & Stargate: SG-1 - Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 6,249 - Reviews: 8 - Favs: 37 - Follows: 36 - Published: 9/27 - Complete
Everything Everywhere One Thing at a Time by Karmic Acumen reviews
Dreams had always been an escape for Harry Potter, but he was pretty sure that you weren't supposed to dream entire lives all at once. Now what's this whole dimensions malarkey and what does divination have to do with it? (HP / Stargate Multicrossover)
Crossover - Harry Potter & Stargate: SG-1 - Rated: T - English - Chapters: 10 - Words: 67,955 - Reviews: 87 - Favs: 352 - Follows: 536 - Updated: 9/25 - Published: 8/2 - Harry P., Nicolas F.
The Talos Principle by Archetype9 reviews
Tasked with the protection of Earth and the secrecy of the Stargate Program, a recently formed Homeworld Command Intervention Team is set on a collision course with the prodigious BAU of the FBI. Reimagination of Beatrice Otter's "The Genetics Factory".
Crossover - Stargate: SG-1 & Criminal Minds - Rated: M - English - Sci-Fi/Crime - Chapters: 7 - Words: 23,487 - Reviews: 5 - Favs: 18 - Follows: 34 - Updated: 9/22 - Published: 5/12/2021 - OC, A. Hotchner/Hotch, D. Morgan, E. Prentiss
Destiny's Child Version 4 by andrewjameswilliams reviews
After an encounter with hostile Klingons and a spatial anomaly the Federation starship Resolution is transported into the Stargate universe. Trouble ensues as they have to learn how to survive in this new reality, build new friendships and alliances and maybe, just maybe, find a way home.
Crossover - StarTrek: Other & Stargate: SG-1 - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 6,429 - Reviews: 13 - Favs: 79 - Follows: 105 - Published: 9/18 - S. Carter, D. Jackson, J. O'Neill, Teal'c
Stargate A New Age by kaln7 reviews
Shepard defeated the Collectors, but now he must face a universe different from his own, but his team won't be the only team to help him get through this uncertain future.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 146,164 - Reviews: 163 - Favs: 252 - Follows: 376 - Updated: 9/12 - Published: 4/6/2017
A Cascade of Echoes by Mirrored Illusions reviews
In which Buffy shouldn't be the one explaining things.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Chapters: 9 - Words: 11,323 - Reviews: 2 - Favs: 27 - Follows: 31 - Updated: 8/30 - Published: 8/6 - Buffy S., D. Jackson, J. O'Neill - Complete
Robotech: The Stargate Saga Information Files by andrewjameswilliams
Background information files on various groups and technologies that appear in my Robotech: The Stargate Saga story.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: K+ - English - Chapters: 2 - Words: 1,800 - Favs: 11 - Follows: 13 - Published: 8/30
Redirected by Mirrored Illusions reviews
In which there's an ugly demon, a purple portal, Buffy, and a frowny-faced SG-1.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Chapters: 11 - Words: 12,601 - Reviews: 9 - Favs: 38 - Follows: 66 - Updated: 8/29 - Published: 8/2 - Buffy S., D. Jackson, J. O'Neill - Complete
Quantum Trouble by Laigron reviews
When NID managed to convince President not to destroy quantum mirror its send to P8R-553 to establish research outpost and to properly study mirror. . Few month after properly establishing outpost and studying the mirror. All contact was lost. SG-1 prepares for recon and subsequent rescue mission.
Crossover - Stargate: SG-1 & X-Com - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,252 - Reviews: 1 - Favs: 4 - Follows: 11 - Published: 8/23 - D. Jackson, J. O'Neill, OC, Warlock
Children of the Moon by Raptorite reviews
When Khonshu sends his Moon Knight to retrieve a stolen Ancient Egyptian artifact, Marc Spector collides with the members of SG-1 during a raid on a suspected rogue NID warehouse. AU where Marc and Steven escape from Ammit's tomb with her ushabti in hand and are on the run from Harrow's followers.
Crossover - Stargate: SG-1 & Moon Knight - Rated: T - English - Chapters: 3 - Words: 18,089 - Reviews: 9 - Favs: 18 - Follows: 28 - Updated: 8/22 - Published: 6/13 - D. Jackson, J. O'Neill, Marc S., Steven G.
The Goa'uld of Beacon: New Pegasus Foothold by qelah22
Ni'khyria is a Goa'uld actress who was born to be a star. When Colonel Jennifer Hailey requests her presence in Atlantis help deal with possible infiltration by Goa'uld bent on becoming a new generation of System Lords, Ni'khyria finds herself meeting amazing people and learning to take on roles she only thought she would ever play onstage. Can a Goa'uld find a home in Atlantis?
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 10 - Words: 34,451 - Favs: 2 - Follows: 3 - Published: 8/17 - OC, Rodney M., Teyla E., Ronon D. - Complete
Stargate - A Town Called Eureka by CGH57 reviews
In the aftermath of the Wraith attack on Area 51, Eureka was born and Global Dynamics constructed in order to take over the duties of the former base. So, 'Stargate' meets 'A Town Called Eureka' - What more could go wrong?
Crossover - Stargate: SG-1 & Eureka - Rated: K - English - Sci-Fi - Chapters: 6 - Words: 8,003 - Reviews: 4 - Favs: 28 - Follows: 41 - Updated: 8/15 - Published: 5/8/2021
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