Stargate: SG-1 Crossovers
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Mini Gate by Kody Wright 2 reviews
Multi crossovers. SG-1 is slung back to 1984 after the hiccup with the stargate. They discover a much smaller gate hidden in cave in the Mojave desert as a result and an unknown alien influence.
Crossover - Stargate: SG-1 & Airwolf - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 14 - Words: 24,084 - Reviews: 15 - Favs: 8 - Follows: 13 - Updated: 6/9 - Published: 4/16
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: 63 - Words: 417,253 - Reviews: 222 - Favs: 43 - Follows: 57 - Updated: 6/8 - Published: 3/4/2021
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: 24 - Words: 118,440 - Reviews: 172 - Favs: 335 - Follows: 422 - Updated: 6/8 - Published: 10/12/2022 - [Hakuno K., Gilgamesh] J. O'Neill, Ba'al
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: 142 - Words: 970,644 - Reviews: 370 - Favs: 189 - Follows: 209 - Updated: 6/7 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
HALO: All the Stars in the Sky: Information Files by Spartan-076A reviews
Information Files for my Halo/Stargate fanfiction I have in development. Rated M for intense scenes of combat and violence portrayed in the main story.
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 1,707 - Reviews: 9 - Favs: 11 - Follows: 12 - Updated: 6/7 - Published: 3/23
Stargate Atlantis Trading Grounds I: The Return To La Rochelle by BazzCatgirl03 reviews
After surviving a fatal assault at his apartment, Daniel Jackson is transferred to the SGA, under the military command. And of General Hank Landry, deciding this is the chance to start his life over. As he and Teal'C, after the cruel and cold blooded betrayal the year before. Of their team, they leave the SGC and start a new life. Alternate Forever In A Day main character bashing.
Crossover - Stargate: SG-1 & StarTrek: The Next Generation - Rated: T - English - Sci-Fi/Angst - Chapters: 132 - Words: 1,380,354 - Reviews: 3 - Favs: 7 - Follows: 8 - Updated: 6/11 - Published: 1/23 - J. Picard, D. Jackson, Teal'c, Gen. Landry - Complete
An Unstoppable force Meets an Immovable Object by RusticItalian reviews
Ethan remembers better times, and it gets interesting, A little nostalgia can be a good thing, a lot of nostalgia might just save the planet. Halloween Inspired Cross-Over between Buffy-verse and Stargate Sg1
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 8,839 - Reviews: 11 - Favs: 64 - Follows: 100 - Updated: 6/6 - Published: 1/15 - Xander H., S. Carter, D. Jackson, J. O'Neill
The Alterans Resurgence by Michael Donovan2 reviews
The 12 colonies origins are not what they seem and now those who came before look on and decide to change the outcome.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 20,246 - Reviews: 20 - Favs: 34 - Follows: 40 - Updated: 6/10 - Published: 6/6
Robotech: The Stargate Saga Version 21 by andrewjameswilliams reviews
Rewrite of Robotech: The Stargate Saga. As robotechnology changed humanities destiny a chance discovery beneath the Giza Plateau reveals an Ancient legacy and a deadly ancient threat.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: T - English - Chapters: 10 - Words: 55,752 - Reviews: 24 - Favs: 77 - Follows: 85 - Updated: 6/5 - Published: 4/25 - S. Carter, D. Jackson, Rick/Hikaru
Valyrian Steel, Obsidian and Plasma by vardax reviews
a StarGate on planetos
Crossover - Stargate: SG-1 & Game of Thrones - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 10,772 - Reviews: 15 - Favs: 22 - Follows: 41 - Updated: 5/29 - Published: 5/8
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: 51 - Words: 249,445 - Reviews: 796 - Favs: 451 - Follows: 524 - Updated: 5/27 - Published: 3/19/2017 - J. O'Neill, W. Adama
Stargate Centurion by SingleDarkShade reviews
When Rory demands to leave the TARDIS he did not expect to be dropped off in a top secret American military base. As he learns where he is, the SGC try to work out who Rory is and where he came from.
Crossover - Doctor Who & Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Friendship - Chapters: 1 - Words: 5,442 - Reviews: 2 - Favs: 6 - Follows: 9 - Published: 5/27 - Rory W., Gen. Hammond, D. Jackson, J. O'Neill - Complete
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: 32 - Words: 95,274 - Reviews: 16 - Favs: 28 - Follows: 45 - Updated: 5/24 - Published: 6/1/2021 - S. Carter
Stargate Atlantis Trading Grounds II: The Glory Of Tantulus II by BazzCatgirl03 reviews
After finding the device necessary to prevent the Ori from attack gaining knowledge of the Milky Way Galaxy. Lieutenant Colonel Daniel Jackson sets out on a mission, meant to protect Earth. And from attack by the System Lords, by forging a stronger treaty. And with the Greek Titan Cronus and the Emperor Lord Yu, but there is still a threat. Taking form in the shape of his ex team.
Crossover - Stargate: SG-1 & StarTrek: The Next Generation - Rated: T - English - Sci-Fi/Family - Chapters: 18 - Words: 183,916 - Reviews: 2 - Favs: 3 - Follows: 2 - Updated: 5/23 - Published: 2/3 - J. Picard, D. Jackson, Teal'c, Gen. Landry
Interstellar Destiny by Ana's Writings
Book 3 in the "Interstellar" series. Lara and Evan finally have their happy ending. Or do they? When a mission goes sideways, Lara is left to believe that her life has been turned upside down. Having to face new challenges, while leaving the one place she has called home for the last few years, Lara has to find a new kind of strength if she is to ever be happy again.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: M - English - Romance/Angst - Chapters: 48 - Words: 27,166 - Published: 5/21 - [E. Lorne, OC] [J. O'Neill, S. Carter] - Complete
Stargate- SGi by Kalissa55
Part 3 in Mia's adventures. This time, she finds herself in an alternate universe with no idea how she got there. Will those who are part of the Stargate program help her? Will Ironman or the X-Men come to her rescue?
Crossover - Stargate: SG-1 & Ironman - Rated: K - English - Adventure - Chapters: 4 - Words: 20,791 - Favs: 6 - Follows: 6 - Updated: 5/19 - Published: 3/3
Stargate SG-1: The Fifth Race by i-defy-fate reviews
AU! Heavily inspired by the story: Project Blue Book by AmeliusTheAlteran. Elements of Halo will be here as well because I love the design of the ships, weapons, and equipment they use. This is a story of what a united earth could accomplish when given a common goal. I plan for this to be at least 200-250K words. No pairings! Slow Updates!
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 27,662 - Reviews: 51 - Favs: 225 - Follows: 312 - Updated: 5/19 - Published: 11/23/2019 - S. Carter, D. Jackson, J. O'Neill, Teal'c
Spiral Gate by GeneralAllenWalker
It was supposed to have been a Mission like any other. Walk through the gate, make contact with the locals, see if they could find any technology or allies useful in the war against the Goauld. Instead Sg-1 finds itself in a village under attack by gigantic mechs, and are forced into a fight much greater than even the one they had sought aid for.
Crossover - Stargate: SG-1 & Gurren Lagann - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 2,045 - Favs: 2 - Follows: 2 - Published: 5/18 - S. Carter, J. O'Neill, Simon, Kamina
How Dr Lee found the Furlings by LittleMiddleA reviews
Who would of thought that the magazine Aliens Among Us! would ever be useful?
Crossover - Animorphs & Stargate: SG-1 - Rated: T - English - Humor/Adventure - Chapters: 8 - Words: 11,490 - Reviews: 2 - Favs: 11 - Follows: 11 - Updated: 5/12 - Published: 12/25/2023 - Complete
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: 54 - Words: 336,875 - Reviews: 2554 - Favs: 3,213 - Follows: 4,026 - Updated: 5/11 - Published: 12/11/2021 - Gen. Hammond, Harry P., Hermione G., Lee J.
Symbiosis by Meushell reviews
A few Tok'ra crash near Deep Space Nine. From there, they and the DS9 staff discover a potential threat to both universes.
Crossover - StarTrek: Deep Space Nine & Stargate: SG-1 - Rated: K+ - English - Adventure/Friendship - Chapters: 14 - Words: 17,638 - Reviews: 8 - Favs: 29 - Follows: 42 - Updated: 5/10 - Published: 2/9/2023 - [S. Carter, Martouf/Lantash] Jadzia D., B. Sisko
Space Wizards: The dawn of the DSF by yoden reviews
A sequel to Esama's "Wizards IN SPACE" on Ao3. 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: 15 - Words: 84,269 - Reviews: 109 - Favs: 316 - Follows: 479 - Updated: 5/8 - Published: 11/11/2020 - Harry P., Albus D.
Les histoires infinies by amandinetrot
Ce sont des petits OS et des textes que j'ai faits pour un atelier d'écriture, que j'ai écrite seul ou avec d'autres personnes.
Crossover - Stargate: SG-1 & Vampire Diaries - Rated: M - French - Chapters: 9 - Words: 14,946 - Updated: 5/8 - Published: 2/26
The Zerg Across the Stargate by Fallenknight88 reviews
40 years before the fall of Ra there was an enemy that even the Goa'uld feared, an Enemy that only know one thing, EVOLVE! this is a Response to CrazedGammaMan1721's challenge. Self Insert; Possible Goa'uld Bashing (Hiatus)
Crossover - Stargate: SG-1 & StarCraft - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 15,030 - Reviews: 2 - Favs: 20 - Follows: 28 - Published: 5/7 - J. O'Neill, Ra, Zerg, OC
New SG1 Member by Phantom Dragon Witch reviews
Danny Fenton Joined the air force with hopes of one day going to space. When he was reassigned to the SGC, he had no clue how close he was to getting his wish, even with all the weirdness that followed him from home.
Crossover - Danny Phantom & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 9,155 - Reviews: 19 - Favs: 42 - Follows: 70 - Updated: 5/6 - Published: 10/28/2023 - D. Jackson, Danny F., J. O'Neill, Sam M.
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