Stargate: SG-1 Crossovers
Filters
3.1K | Page 1 2 3 4 11 .. Last Next »

Araiansu by Lerris reviews
This is a multicross, initially focused mostly on Stargate. Ranma from Ranma 1/2 is added at the start and a couple other series are added later. This is a story about how the great alliance came to be. Politics warning plus some mentions of religion.
Crossover - Stargate: SG-1 & Ranma - Rated: T - English - Sci-Fi/Fantasy - Chapters: 15 - Words: 101,870 - Reviews: 44 - Favs: 44 - Follows: 80 - Updated: 9h - Published: 10/14 - S. Carter, Ranma
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: 15 - Words: 67,213 - Reviews: 92 - Favs: 275 - Follows: 445 - Updated: 11/3 - Published: 6/16 - [Harry P., Hermione G.] S. Carter, J. O'Neill
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: 46 - Words: 284,754 - Reviews: 1978 - Favs: 2,291 - Follows: 3,033 - Updated: 11/2 - Published: 12/11/2021 - Gen. Hammond, Harry P., Hermione G., Lee J.
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: 42 - Words: 285,482 - Reviews: 132 - Favs: 37 - Follows: 50 - Updated: 11/2 - Published: 3/4/2021
Another Beginning by Cheeky-cat-writer
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: 16 - Words: 30,024 - Favs: 6 - Follows: 5 - Updated: 11/1 - Published: 9/15 - S. Carter, J. O'Neill, Ron S., Tara - Complete
The Offer by Eleri McCleod reviews
Jack O'Neill has spent years not-so-patiently waiting to poach JAG's only fighter pilot turned lawyer for the SGC. Since the CIA seemed to be done with him, Jack wasn't about to miss yet another opportunity. JAG/SG-1 crossover; 1st in the "Honor Bound" series.
Crossover - JAG & Stargate: SG-1 - Rated: K - English - Drama - Chapters: 1 - Words: 1,821 - Reviews: 5 - Favs: 5 - Follows: 8 - Published: 10/29 - H. Rabb, J. O'Neill - Complete
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: 58 - Words: 400,883 - Reviews: 133 - Favs: 128 - Follows: 145 - Updated: 10/29 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
Harry Headlines At Glastonbury by tyrannicpuppy reviews
Since the war, Harry has taken to exploring long-forgotten places as a chance to escape his extensive and unwanted fame. But what he found in the depths of Glastonbury Tor will change not only his own life, but the future of all.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Sci-Fi - Chapters: 20 - Words: 125,287 - Reviews: 540 - Favs: 1,984 - Follows: 2,859 - Updated: 10/27 - Published: 10/1/2021 - [Harry P., Hermione G.] Luna L., Merlin
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: 17 - Words: 34,095 - Reviews: 21 - Favs: 14 - Follows: 19 - Updated: 10/25 - Published: 7/28
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: 15 - Words: 83,027 - Reviews: 131 - Favs: 187 - Follows: 209 - Updated: 10/25 - Published: 5/23 - S. Carter, D. Jackson, Rick/Hikaru, Claudia
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: 49 - Words: 157,778 - Reviews: 199 - Favs: 473 - Follows: 560 - Updated: 10/25 - Published: 12/14/2021 - J. O'Neill, Ba'al, OC
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: 26 - Words: 64,015 - Reviews: 14 - Favs: 16 - Follows: 31 - Updated: 10/25 - Published: 6/1/2021 - S. Carter
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: 4 - Words: 5,983 - Favs: 1 - Follows: 2 - Updated: 10/23 - Published: 8/1 - Buffy S., Faith L., J. O'Neill, Teal'c
Space Wizards Book 1 : The dawn of the DSF by yoden reviews
A sequel to Esama's "Wizards IN SPACE". As the crew of an alien spaceship, Harry and the DA must make their own place in a world torn by war. Between discovering the secrets of alien tech, creating their own, fighting for survival and building up an international organization, they are up for an interesting year.
Crossover - Harry Potter & Stargate: SG-1 - Rated: T - English - Adventure/Drama - Chapters: 6 - Words: 31,761 - Reviews: 46 - Favs: 164 - Follows: 269 - Updated: 10/23 - Published: 11/11/2020 - Harry P., Albus D.
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: 13 - Words: 43,569 - Reviews: 22 - Favs: 77 - Follows: 104 - Updated: 10/23 - Published: 12/16/2021
Star Gate Express by Kody Wright 2 reviews
SG-1 with Janet Frasier end up in 1859 while attempting to deliver medication off world. Soon they rescue a Pony Express rider and find a smaller Gate on Indian land and must somehow get back home.
Crossover - Stargate: SG-1 & Young Riders - Rated: K - English - Western/Sci-Fi - Chapters: 2 - Words: 4,244 - Reviews: 2 - Favs: 6 - Follows: 8 - Updated: 10/22 - Published: 10/17
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.
Crossover - Stargate: SG-1 & Despicable Me - Rated: K - English - Chapters: 9 - Words: 20,857 - Reviews: 23 - Favs: 23 - Follows: 25 - Updated: 10/22 - Published: 9/14
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: 76 - Follows: 110 - 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: 167 - 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: 21 - Follows: 32 - 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: 291 - 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: 5 - Follows: 10 - 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: 1 - Favs: 2 - Follows: 4 - 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
3.1K | Page 1 2 3 4 11 .. Last Next »