Stargate: SG-1 Crossovers
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A Tauri in Westeros by fmfan1980 reviews
After a mission that went wrong, Captain Alayne Collins of the Tau'ri finds herself on another world. A medieval world were she finds herself with a double of her mother and brother. (Re-upload)
Crossover - Stargate: SG-1 & Game of Thrones - Rated: K - English - Chapters: 7 - Words: 34,582 - Reviews: 3 - Favs: 25 - Follows: 42 - Published: 7/21
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: 32 - Words: 164,551 - Reviews: 479 - Favs: 371 - Follows: 420 - Updated: 7/20 - Published: 3/19/2017 - J. O'Neill, W. Adama
Requiem VI by bearhug562000
As our heroes close in on the final solution to defeating the Darkness and its dead hordes, they are unaware that their enemies are hot on their respective tails!
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Fantasy/Sci-Fi - Chapters: 5 - Words: 9,239 - Favs: 1 - Follows: 2 - Updated: 7/19 - Published: 1/6 - Buffy S., Faith L., J. O'Neill, Teal'c
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: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 15,243 - Reviews: 26 - Favs: 106 - Follows: 125 - Updated: 7/17 - Published: 1/1/2020 - Gen. Hammond, J. O'Neill, OC, Abathur
Place of Our Legacy by firstprime1230 reviews
Earth has been overrun by the forces of the Ori. Beaten, demoralized and on the run in the Ancient city of Atlantis the survivors of Earth make a desperate gamble to save what little they have left. Arriving in a galaxy so different from their own, can they uphold the legacy left to them by the races that came before? And save a galaxy doomed to a suffer a fate worse than death.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 194,967 - Reviews: 486 - Favs: 1,022 - Follows: 1,414 - Updated: 7/15 - Published: 4/30/2020
Mathematically Challenged by Red Leader reviews
Amy Fowler Cooper has been keeping a secret from Sheldon. This is a oneshot
Crossover - Stargate: SG-1 & Big Bang Theory - Rated: K - English - Sci-Fi - Chapters: 4 - Words: 9,467 - Reviews: 19 - Favs: 7 - Follows: 15 - Updated: 7/14 - Published: 6/19
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: 28 - Words: 182,814 - Reviews: 326 - Favs: 324 - Follows: 486 - Updated: 7/14 - Published: 10/6/2021
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: 17 - Words: 57,945 - Reviews: 28 - Favs: 94 - Follows: 124 - Updated: 7/12 - Published: 12/16/2021
Avatar:SG-1 by FrogTrainer
SG-1 meets Team Avatar.
Crossover - Stargate: SG-1 & Avatar: Last Airbender - Rated: T - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 3,505 - Favs: 1 - Follows: 2 - Published: 7/11
Samantha Carter - Slave of Jabba by Failhammer reviews
After an SG-1 mission went wrong, Sam became Jabba's newest slave. Stranded in the palace, with no idea when or if rescue will arrive, Sam must survive her new circumstances as best she can.
Crossover - Star Wars & Stargate: SG-1 - Rated: T - English - Drama - Chapters: 5 - Words: 16,411 - Reviews: 16 - Favs: 21 - Follows: 29 - Updated: 7/8 - Published: 10/11/2022 - Jabba the Hutt, Oola, S. Carter
Gateways of Redemption by miko-demoness
In a thrilling crossover between Stargate SG-1 and Buffy the Vampire Slayer, a team of warriors unites to combat the sinister alliances of vampires across dimensions. They face battles, uncover ancient secrets, and confront a truth that threatens the multiverse. Through unity and unwavering determination, they fight for redemption and the triumph of light over darkness.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: K - English - Chapters: 10 - Words: 5,485 - Follows: 2 - Published: 7/3
Stargate Command - The Aftermath by Ryan89 reviews
This is my take on what happens after, a more practical view on the use of technologies. The Ori have been defeated, Atlantis has remained on Earth for the past 9 months as teams of scientists scour the database in search of new and improved technologies. Old enemies resurface with vengeance on their mind. Atlantis will be returning to the Pegasus Galaxy to annihilate the Wraith.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K - English - Sci-Fi/Adventure - Chapters: 11 - Words: 24,693 - Reviews: 21 - Favs: 12 - Follows: 15 - Updated: 7/3 - Published: 6/7 - S. Carter, D. Jackson, J. O'Neill, Gen. Landry
Stumbling through Godhood by freeraynman reviews
If you could travel through alternate realities what would you do? Become a God and rule or chillback and go with the flow? Inspired heavily by 'Cruel To be Kind', '12 Steps To Omnipotence', 'Rise of an Empire' and a million and one other fanfics. If you see stuff and think that it's similar to another fanfic. it's probably because we read the same story and I liked that idea.
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Chapters: 23 - Words: 192,162 - Reviews: 586 - Favs: 1,718 - Follows: 2,144 - Updated: 7/2 - Published: 9/29/2021 - S. Carter, D. Jackson, J. O'Neill, OC
Gradients by Lepton reviews
Harry and friends unwittingly change the fate of the galaxy. An exploration of magic, technology, ascent and descent.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 31,243 - Reviews: 83 - Favs: 406 - Follows: 700 - Updated: 7/1 - Published: 11/23/2022 - Harry P.
Dismantling Destiny III: Rewritten Fates by ImaliFegen reviews
The rewrite of SG-1 S09 episodes, Babylon, The Fourth Horseman Part I & II and Collateral Damage. (Full summary inside.)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: M - English - Adventure/Romance - Chapters: 19 - Words: 67,635 - Reviews: 17 - Favs: 2 - Follows: 2 - Updated: 7/1 - Published: 5/2 - Complete
Here Comes Trouble Make It Double by mcguire.elizabeth.99990000 reviews
Harry has a twin sister who Dumbledore left in American but with complete strangers instead of part family ooc twin HPGW HRFW Dumbledore, ron, molly bashing slight Mcgonicall bashing. discontinued due to new guidelines.
Crossover - Harry Potter & Stargate: SG-1 - Rated: M - English - Adventure/Fantasy - Chapters: 5 - Words: 2,662 - Reviews: 5 - Favs: 11 - Follows: 22 - Updated: 6/30 - Published: 12/3/2020 - Complete
Plus One by Tanista2 reviews
There's no such thing as a normal mission for SG-1. Not even on the rare occasions when they are a team of five instead of four. Or, an ongoing chronicle of the weird things that happen offworld when a certain linguist accompanies the team as Daniel's assistant. (Ad Astra 'verse)
Crossover - Stargate: SG-1 & MacGyver - Rated: T - English - Drama/Romance - Chapters: 6 - Words: 21,484 - Reviews: 1 - Favs: 3 - Follows: 1 - Updated: 6/30 - Published: 5/11/2020 - S. Carter, D. Jackson, J. O'Neill, OC
Gibbs Gets that Phone Call by thebigianthead reviews
The US continuity of government protocol has been initiated. Gibbs gets a phone call.
Crossover - Stargate: SG-1 & NCIS - Rated: K+ - English - Chapters: 3 - Words: 12,811 - Reviews: 7 - Favs: 25 - Follows: 29 - Updated: 6/27 - Published: 6/17 - Gen. Hammond, J. O'Neill, Leroy Jethro Gibbs - Complete
Successor of the Alterans by MissValteria reviews
A Harry Potter who was just struck down by the Dark Lord stumbles into a mysterious encounter via luck that would rival even that of Tyche. Now he seeks to carve a life for himself to live while exploring this vast galaxy. And perhaps, one day return to his old universe. Spiritual successor to Heir of the Alterans.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 13 - Words: 20,235 - Reviews: 171 - Favs: 835 - Follows: 1,270 - Updated: 6/20 - Published: 11/18/2022 - S. Carter, J. O'Neill, Harry P.
My New Boss by ElohimEditor reviews
After being arrested for helping Dark Kat, Hard Drive is sent to Alkatraz, where an unexpected ally helps him escape and offers him a deal he could hardly refuse, and would change his life and his perception of the world forever.
Crossover - Stargate: SG-1 & SWAT Kats - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 51,424 - Reviews: 1 - Favs: 2 - Follows: 5 - Updated: 6/14 - Published: 10/16/2021
Harry Potter and the Enforced Holiday by tscchope reviews
Harry is sent on holiday and meets Jack O'Neill. I've switched Bane and Secrets episode order, but had Sam learn of her father's illness. Set after the Battle of Hogwarts and follows the crapilogue, somewhat. Jack and Sam will be getting together. For Jack it's sort of a family tradition, for Sam it's her dad's imminent demise that forces her to think about being a mother.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Family - Chapters: 4 - Words: 22,107 - Reviews: 22 - Favs: 105 - Follows: 187 - Updated: 6/6 - Published: 2/14 - S. Carter, J. O'Neill, Harry P., Hermione G.
Stargate meets Galactica by SGBill7 reviews
This is a slightly AU Battlestar Galactica, no razor or lay down your burdens, and a post disclosure Stargate Sg1.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 8,714 - Reviews: 81 - Favs: 129 - Follows: 221 - Updated: 6/4 - Published: 3/23/2022
Come Now, Little One by Sarcastic Sci-Fi Writer reviews
Sam has spent her whole life in the Sanctuary, being raised to take over by her slightly psycho mother. That life isn't the one that Sam wants, but her mother has a very clear idea of what she should be. Rebelling against it for years, Sam searches for an escape from the darkening world she was raised in. Summary to change. dark!fic.
Crossover - Stargate: SG-1 & Sanctuary - Rated: T - English - Drama/Hurt/Comfort - Chapters: 3 - Words: 16,041 - Reviews: 9 - Favs: 2 - Follows: 8 - Updated: 6/4 - Published: 5/12 - S. Carter, J. O'Neill, Helen M., Ashley M.
Star King by overlord susanoo reviews
In a new universe far far away full of aliens and combat Danny is now trying to build an empire. There are many that would stand in his way from this universe and beyond. In the end he will strive to stand above all of them.
Crossover - Stargate: SG-1 & Danny Phantom - Rated: T - English - Chapters: 46 - Words: 158,567 - Reviews: 15 - Favs: 125 - Follows: 116 - Updated: 6/1 - Published: 5/10/2019 - Danny F. - Complete
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: 11 - Words: 13,678 - Reviews: 4 - Favs: 18 - Follows: 29 - Updated: 5/30 - Published: 2/9 - [S. Carter, Martouf/Lantash] Jadzia D., B. Sisko
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