Stargate: SG-1 Crossovers
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Harry Potter and Origin of Magic by vivekdaveflame reviews
story idea about harry potter, available for adoption
Crossover - Harry Potter & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 3,343 - Reviews: 2 - Favs: 6 - Follows: 10 - Updated: 15h - Published: 5/6 - [Harry P., Hermione G.]
A New Tournament by killgore444 reviews
A gift from the future provides a little bit of hope in a time of need. OP Harry, Ron and Hermione, but with a plausible background to support it. No bashing, even of disliked characters.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Chapters: 8 - Words: 91,301 - Reviews: 133 - Favs: 396 - Follows: 613 - Updated: 17h - Published: 4/12/2020
Seeing Double by Sci-FiMedic
A wild tale in which Mac and SG-1 find themselves bouncing around from one alternate universe to the next.
Crossover - Stargate: SG-1 & MacGyver - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 2 - Words: 2,902 - Favs: 1 - Updated: 5/13 - Published: 5/7 - S. Carter, J. O'Neill, Jack D., MacGyver
Odyssey by TimeTraveller-1900 reviews
The Alphans discover a ship on the dark side of their moon. The Alphans now have a ship that will change their entire future for good. The Alphans can now find a new home. The Alphans...can now return home. Their Odyssey will go on.
Crossover - Stargate: SG-1 & Space 1999 - Rated: T - English - Sci-Fi - Chapters: 19 - Words: 54,866 - Reviews: 38 - Favs: 69 - Follows: 98 - Updated: 5/13 - Published: 12/20/2021
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: 86 - Words: 592,534 - Reviews: 206 - Favs: 157 - Follows: 169 - Updated: 5/13 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
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: 1 - Words: 5,815 - Reviews: 2 - Published: 5/12 - S. Carter, J. O'Neill, Helen M., Ashley M.
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: 22 - Words: 188,274 - Reviews: 523 - Favs: 1,507 - Follows: 1,894 - Updated: 5/12 - Published: 9/29/2021 - S. Carter, D. Jackson, J. O'Neill, OC
Humanité by Audragon reviews
La mort était douloureuse. Et lorsqu'on était Maître de la Mort, elle était aussi pleine de révélations. Mais lorsqu'on l'était, ce passage n'était que le début, le début vers une nouvelle existence dans laquelle la Mort elle même devenait une protectrice offrant une voie d'accomplissement pour celui qu'elle avait choisi...
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - French - Fantasy/Sci-Fi - Chapters: 16 - Words: 123,945 - Reviews: 131 - Favs: 160 - Follows: 180 - Updated: 5/11 - Published: 1/10 - C. Kawalsky, Thor, Harry P.
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: 14 - Words: 174,632 - Reviews: 436 - Favs: 957 - Follows: 1,320 - Updated: 5/11 - Published: 4/30/2020
The Gate of Life by DanielJackson117 reviews
When a mysterious enemy attacks The Underworld, the heroes from the Prophecy of Seven (and a few others) are called to action. Their quest brings them into contact with new friends, new enemies, new rules, new gods, familiar problems, and a few familiar faces. Set post Trials of Apollo and mid SG-1 season 10.
Crossover - Stargate: SG-1 & Percy Jackson and the Olympians - Rated: T - English - Drama/Adventure - Chapters: 9 - Words: 23,420 - Reviews: 3 - Favs: 8 - Follows: 10 - Updated: 5/11 - Published: 5/5 - S. Carter, D. Jackson, Annabeth C., Percy J.
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: 8 - Words: 63,208 - Reviews: 23 - Favs: 58 - Follows: 74 - Updated: 5/11 - Published: 10/10/2022
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: T - English - Adventure/Romance - Chapters: 4 - Words: 14,235 - Reviews: 4 - Favs: 1 - Follows: 1 - Updated: 5/11 - Published: 5/2
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: 7 - Words: 31,970 - Reviews: 51 - Favs: 179 - Follows: 256 - Updated: 5/10 - Published: 10/12/2022 - [Hakuno K., Gilgamesh] J. O'Neill, Ba'al
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: 27 - Words: 141,236 - Reviews: 396 - Favs: 340 - Follows: 391 - Updated: 5/7 - Published: 3/19/2017 - J. O'Neill, W. Adama
Place of Our Legacy Codex by firstprime1230 reviews
This is a collection of technical and character information regarding the Stargate universe and the Mass Effect universe. This kind of information does not usually make it into the main story as it takes away from the flow. However, for those who aren't familiar with either franchise or enjoy these details can find basic information that will be important to the story here.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 7,933 - Reviews: 9 - Favs: 12 - Follows: 7 - Published: 5/7
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: 30 - Words: 159,109 - Reviews: 254 - Favs: 264 - Follows: 296 - Updated: 5/5 - Published: 5/23/2022 - S. Carter, D. Jackson, Rick/Hikaru, Claudia
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: 10 - Words: 11,208 - Reviews: 3 - Favs: 15 - Follows: 24 - Updated: 5/4 - Published: 2/9 - [S. Carter, Martouf/Lantash] Jadzia D., B. Sisko
Into the Void: SG-1 by Brenna's Urbangirl Projects reviews
On that fateful Halloween night. Buffy, Xander, Willow and Joyce would be given a new destiny. Along with that destiny they would be given a starship and a space station in which to help fight the Goa'uld.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 61 - Words: 296,712 - Reviews: 358 - Favs: 808 - Follows: 1,016 - Updated: 5/2 - Published: 5/15/2014 - [Buffy S., Willow R.] Xander H., Joyce S.
How the hell did I get here by zheuse reviews
Waking up after a car accident isn't supposed to put me in a Capsuleer body. Now I have to figure out how to survive.
Crossover - Stargate: SG-1 & EVE Online - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 16,420 - Reviews: 19 - Favs: 76 - Follows: 90 - Updated: 4/28 - Published: 4/16
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: 7 - Words: 46,009 - Reviews: 1 - Favs: 2 - Follows: 5 - Updated: 4/27 - Published: 10/16/2021
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: 12 - Words: 18,073 - Reviews: 149 - Favs: 669 - Follows: 1,041 - Updated: 4/23 - Published: 11/18/2022 - S. Carter, J. O'Neill, Harry P.
Reborn a Worm by feauxen reviews
Taylor Hebert just can't get a break. She retired to a peaceful alternate Earth after the horror show that was Golden Morning, but Contessa didn't bother making sure she lived to reach old age. And someone seems to be pulling strings behind the curtain, because this definitely isn't the afterlife...
Crossover - Stargate: SG-1 & Worm - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 15,505 - Reviews: 86 - Favs: 449 - Follows: 622 - Updated: 4/22 - Published: 3/24/2022 - Gen. Hammond, J. O'Neill, Skitter
Melting Ice by Athena8472
When Zordon dies, he leaves one last mission for Tommy. To protect something that has been buried in ice for 10 million years. With the help of Andros and Zhane, he heads to Antarctica. Alpha/Beta/Omega Dynamics. Sentinel/Guides known. Second in the Celestials Series.
Crossover - Stargate: SG-1 & Power Rangers - Rated: M - English - Sci-Fi/Romance - Chapters: 2 - Words: 12,789 - Favs: 7 - Follows: 11 - Updated: 4/22 - Published: 3/31/2022 - [OC, Tommy O.] [Zhane, Andros]
Araiansu by Lerris reviews
This is a crossover, initially focused initially mostly on Stargate. Ranma from Ranma is added at the start and quite a few stories are added over time. This is a story about how the Alliance came to be. It is a story about finding ways to make things right, and all the problems that occur along the way. Politics warning plus minor mentions of religion early on.
Crossover - Stargate: SG-1 & Ranma - Rated: T - English - Sci-Fi/Fantasy - Chapters: 62 - Words: 521,098 - Reviews: 142 - Favs: 113 - Follows: 144 - Updated: 4/17 - Published: 10/14/2022 - S. Carter, Ranma
Alien SG-1 challenge by ReadAlert
Details inside
Crossover - Stargate: SG-1 & Ben 10 - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 147 - Favs: 1 - Follows: 1 - Published: 4/16 - [Ben T., S. Carter]
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