Stargate: SG-1 Crossovers
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Requiem V by bearhug562000
As the mysterious attacks from the dead turned into monsters increase at frightening speed, Buffy, Athena, Neil and gang desperately search for the cause of this plague and how to stop it. Elsewhere, Eppy, Spidey, and SG-1 investigate something strange on the moon...
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Fantasy/Sci-Fi - Chapters: 3 - Words: 2,884 - Follows: 1 - Updated: 9h - Published: 8/1 - Buffy S., Faith L., J. O'Neill, Teal'c
Celeste by Amelia E. Adler reviews
Continuation of Midnight Blue, Azure, and Shades of Blue: Intermission. After returning to her own timeline, Alice Boyd has to deal with the fallout. Chasing and confronting her nemesis will only be a part of her struggle; more than anything, she will have to face her own emotions, and who knows where they'll lead her in the end... OC with no AU - futurefic.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 38 - Words: 256,797 - Reviews: 118 - Favs: 36 - Follows: 48 - Updated: 14h - Published: 3/4/2021
Stars bound in shadows by Illuviar reviews
The Stargate show implied that the timeline we saw in on screen was arguably the best. We outrigts saw many realities where various decisions and bad luck either doomed Earth, or saw it pay much higher price for its eventual ascension as a galactic power. This is a story about one of those realities where sheer luck and relying on a last minute resque are not wise decisions...
Crossover - Star Wars & Stargate: SG-1 - Rated: M - English - Sci-Fi/Adventure - Chapters: 39 - Words: 126,004 - Reviews: 155 - Favs: 389 - Follows: 450 - Updated: 9/19 - Published: 12/14/2021 - J. O'Neill, Ba'al, OC
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: 6,426 - Reviews: 9 - Favs: 39 - Follows: 59 - Published: 9/18 - S. Carter, D. Jackson, J. O'Neill, Teal'c
Stargate: Archaic Stratagem by Red Leader reviews
Charlie Burke has been transported to another universe after sacrificing her life to save the Kaylons from the weapon that she and Isaac developed.
Crossover - Stargate: SG-1 & Orville - Rated: K+ - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 21,304 - Reviews: 16 - Favs: 10 - Follows: 18 - Updated: 9/17 - Published: 7/28
Stargate Etheria by Starfox5 reviews
Entering a gate leading to an unknown planet while dodging fire wasn't too uncommon for SG-1. Meeting strange new people wasn't unusual either for the Best Friends Squad. But figuring out how to deal with each other, the remnants of the Horde Clones and the Goa'uld threat without a D.H.D. for the Stargate on Etheria? That was new for both.
Crossover - Stargate: SG-1 & She-Ra and the Princesses of Power - Rated: T - English - Adventure/Sci-Fi - Chapters: 52 - Words: 360,129 - Reviews: 94 - Favs: 119 - Follows: 139 - Updated: 9/17 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
Another Beginning by Angel-one-calling
There is This Ron from another dimension, and he is guiding Ron through life until another unexpected invasion begins. Very little SG1, most Kim Possible.
Crossover - Stargate: SG-1 & Kim Possible - Rated: T - English - Chapters: 2 - Words: 3,937 - Favs: 1 - Follows: 1 - Updated: 9/17 - Published: 9/15 - S. Carter, J. O'Neill, Ron S., Tara
Star Granger - Season 5 by SFD reviews
Once upon a time, a race of people fled their home planet, not willing to present themselves as gods. They went on and seeded life in substantial parts of the known universe. Klingons will tell you that gods are more trouble than they are worth, and that to grow, a race needs to do all their gods in. But, doing-whoever-all-in is SO not Federation. What a girl to do?
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 35,727 - Reviews: 49 - Favs: 250 - Follows: 400 - Updated: 9/15 - Published: 6/16 - [Harry P., Hermione G.] S. Carter, J. O'Neill
Minion Gate by Kody Wright 2 reviews
When a number of Minions come through the quantum mirror, Jack finds himself the new boss to a new kind of army. Daniel discovers his foster brother has a secret past. Note: only the minions in this cross over. No Gru or other main characters.
Crossover - Stargate: SG-1 & Despicable Me - Rated: K - English - Chapters: 1 - Words: 2,753 - Reviews: 2 - Favs: 4 - Follows: 5 - Published: 9/14
The Defensive Space Force Ship Requirement by tkepner reviews
Harry Potter, and the rest of Dumbledore's Army in his fifth year, use the Room of Requirement to get themselves a spaceship! The problems of a tiny island on Earth don't seem so important, anymore. Wizards in Space! What could possibly go wrong with that? Eventually, this will be a crossover with Stargate SG-1.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Fantasy/Sci-Fi - Chapters: 39 - Words: 238,452 - Reviews: 1669 - Favs: 2,115 - Follows: 2,827 - Updated: 9/14 - Published: 12/11/2021 - Gen. Hammond, Harry P., Hermione G., Lee J.
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: 30 - Words: 117,115 - Reviews: 312 - Favs: 286 - Follows: 397 - Updated: 9/13 - Published: 1/14/2006 - D. Jackson, J. O'Neill, Clark K./Superman, Pete R.
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: 158 - Favs: 245 - Follows: 361 - Updated: 9/12 - Published: 4/6/2017
To the Friends We Lost by NTACvic reviews
A reflection on the Stargate Program, by the people who are part of it. (SG-1, SGA, SGU)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 10,260 - Reviews: 9 - Favs: 2 - Follows: 5 - Updated: 9/12 - Published: 7/24 - S. Carter, D. Jackson, J. O'Neill, Rodney M.
A Legacy of Chaos: A Ship of Line Story by andrewjameswilliams reviews
In the aftermath of Ethan Rayne's spell Xander Harris finds himself transformed into a capsuleer and finds himself drawn into the battle between Stargate Command and the Goa'uld Empire. *Chapter one edited.*
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 13 - Words: 75,642 - Reviews: 236 - Favs: 737 - Follows: 902 - Updated: 9/3 - Published: 3/20/2020
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: 11 - Words: 33,863 - Reviews: 138 - Favs: 262 - Follows: 349 - Updated: 9/2 - Published: 1/1
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: 22 - Follows: 26 - 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: 9 - Follows: 11 - Published: 8/30
Nephalem Outlaws by MetalSaiyan88 reviews
I died and was Reborn in Narutoverse only things didn't make sense, Minato is alive, Naruto has twin sisters wait he doesn't have Chakra, and is that a Stargate, what the hell is going on here... will have crossover with Mass effect, Star wars and Diablo... also Naruto pairing with Liara T'soni, Talizorah and Ashoka Tano.
Crossover - Stargate: SG-1 & Naruto - Rated: T - English - Adventure/Drama - Chapters: 11 - Words: 37,054 - Reviews: 17 - Favs: 68 - Follows: 91 - Updated: 8/30 - Published: 12/16/2021
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: 35 - Follows: 62 - Updated: 8/29 - Published: 8/2 - Buffy S., D. Jackson, J. O'Neill - Complete
Robotech: The Stargate Saga by andrewjameswilliams reviews
As robotechnology changed humanities destiny so does a chance discovery beneath the remains of the Giza plateau revealing both an ancient legacy and an ancient threat.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 56,048 - Reviews: 79 - Favs: 158 - Follows: 179 - Updated: 8/25 - Published: 5/23 - S. Carter, D. Jackson, Rick/Hikaru, Claudia
Sisters, the adventures of Samantha and Buffy Carter by FPBarbieri reviews
Samantha Carter, prodigy. Buffy Carter Summers, loving little sister. The story of their lives, together and apart.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Drama/Family - Chapters: 21 - Words: 47,315 - Reviews: 13 - Favs: 15 - Follows: 28 - Updated: 8/25 - Published: 6/1/2021 - S. Carter
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: 2 - Follows: 6 - 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: 17 - Follows: 24 - Updated: 8/22 - Published: 6/13 - D. Jackson, J. O'Neill, Marc S., Steven G.
Fleet of the Homeword Bound: Battle of Antartica by Sora with an S reviews
With Anubis due to arrive any minute, Stargate Command are not in the mood for anything else going wrong. A bunch of fictional starships showing up as a bunch of shipgirls certainly qualifies.
Crossover - Stargate: SG-1 & TV X-overs - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 22,641 - Reviews: 13 - Favs: 42 - Follows: 57 - Updated: 8/21 - Published: 4/8 - Gen. Hammond, Elizabeth Weir
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: 2 - Published: 8/17 - OC, Rodney M., Teyla E., Ronon D. - Complete
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