Stargate: SG-1 Crossovers
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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: 3 - Words: 4,414 - Favs: 15 - Follows: 16 - Updated: 2/13 - Published: 8/30/2022
The Noble Wolf of Earth by Slim A Lou Prime reviews
Noble Six was fighting the inevitable, he knew he would die on Reach. Yet he was not going to make it easy for covenant. Turns out killing him was outside their ground forces abilities. So they sent a cruiser glass him. That ship only managed to trap him before a flying forerunner monitor decided to set him lose on another galaxy. Maybe he wasn't meant to die on Reach.
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 26,823 - Reviews: 45 - Favs: 188 - Follows: 291 - Updated: 2/11 - Published: 11/28/2022 - SPARTAN-B312/Noble Six
Egeria's Freedom by Voltaire's Writer
What if Egeria was rescued before she was discovered by the Pangarians? What if Egeria saves Jamie's life? Find out the answers to these questions and more in the story. Disclaimer: I do not own Stargate SG-1 or A Walk to Remember
Crossover - Stargate: SG-1 & A Walk to Remember - Rated: T - English - Romance/Adventure - Chapters: 1 - Words: 2,232 - Favs: 1 - Follows: 2 - Published: 2/7 - Complete
A Lifetime Together by RenaJo reviews
After the events of Three Months to Remember, Samantha Potter returns to America with Harry in tow to begin a life together. summary edited because reasons
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Romance/Adventure - Chapters: 4 - Words: 13,813 - Reviews: 36 - Favs: 161 - Follows: 255 - Updated: 2/6 - Published: 6/18/2022 - S. Carter, Harry P.
Traveller Inbound by ProcrastinationStrikes reviews
The SG-1 Chulak mission happened during a week in February 1997. The Orders to change all astronautical observation devices did not occur as quickly thanks to bureaucracies and a few too-invested researchers. All devices did not reorient to search for eventual aggressive Goa'uld activity until Late March 1997. Making it so that Earth did not miss an unexpected visitor. Absolute AU.
Crossover - X-overs & Stargate: SG-1 - Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 2,548 - Reviews: 2 - Favs: 7 - Follows: 14 - Published: 2/4
Ship of the Line: Far Traveler by Worldmaker reviews
My response to Zaion's Ship of the Line challenge on Twisting the Hellmouth. The Scoobies wake up after Halloween to find themselves in orbit, at the controls of a powerful warship from a thousand years in the future. How will their new circumstances affect a 21st Century Earth that is already embroiled in a secret interstellar war? Rated M for mature language and situations.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Chapters: 5 - Words: 48,824 - Reviews: 147 - Favs: 553 - Follows: 749 - Updated: 2/2 - Published: 6/28/2020 - Xander H.
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: 23 - Words: 102,499 - Reviews: 141 - Favs: 327 - Follows: 491 - Updated: 2/2 - Published: 6/16/2022 - [Harry P., Hermione G.] S. Carter, J. O'Neill - Complete
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: 3 - Words: 9,244 - Reviews: 9 - Favs: 13 - Follows: 18 - Updated: 2/1 - Published: 10/11/2022 - Jabba the Hutt, Oola, S. Carter
A New Crossroad by detonik reviews
A Stargate / Overlord crossover set at the end of Stargate Atlantis and the end of the Overlord Saga. After investigating in dephts the ancients knowledge and discoveries, Daniel Jackson finds out that Janus experimented with other realities where magic seems to be a thing. With the Ori threat contained and the Pegasus expedition over, it's a good time to resume exploration.
Crossover - Stargate: SG-1 & Overlord/オーバーロード - Rated: T - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 35,059 - Reviews: 105 - Favs: 127 - Follows: 161 - Updated: 1/29 - Published: 3/17/2022
Gundam Seed: A New Path by readerofgoodfanfiction reviews
The Second Bloody Valentine's War has ended. In the midst of it all, the Atlantic Federation forms a top secret military division called Stargate Command located deep within the heart of Cheyenne Mountain, Colorado. The discovered Ancient relic, the Stargate, help raise back a nation from the ashes of its defeat like a phoenix and shows the galaxy what it truly means to be Tau'ri.
Crossover - Stargate: SG-1 & Gundam Seed - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 24 - Words: 139,877 - Reviews: 247 - Favs: 224 - Follows: 227 - Updated: 1/27 - Published: 7/14/2011 - OC
I Still Say it Looks like a Nail by dogbertcarroll reviews
Xander takes a little time off to let his wounds heal after the Olaf incident. His mother's estranged brother's place should be quiet enough to give him the time to heal, after all how exciting could working in deep space telemetry be?
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Humor/Sci-Fi - Chapters: 11 - Words: 27,302 - Reviews: 595 - Favs: 2,258 - Follows: 2,381 - Updated: 1/27 - Published: 5/20/2010 - Xander H.
LOS NIÑOS DEL OCASO by aletan marxan reviews
Las Doce Colonias de Kobol no están solas como pensaban y la Vía Láctea tiene secretos y peligros, de los cuales aprender y huir. ¿Cómo responderán a ello?.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - Spanish - Chapters: 17 - Words: 94,965 - Reviews: 40 - Favs: 22 - Follows: 21 - Updated: 1/26 - Published: 4/30/2019
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: 15 - Words: 50,006 - Reviews: 26 - Favs: 86 - Follows: 114 - Updated: 1/25 - Published: 12/16/2021
UNSC Ascension des Tau'ri by Kagaho0 reviews
Quand l'équipage du Spirit of Fire voulais rentrer sur Terre ils ne s'attendait pas a se retrouver face a un monde si semblable a la leur mais pourtant si différent. Mais et si c'était là une chance pour eux de sauvé des vie ! La renaissance du CSNU par Ultimate Deathsaurer 2 m'as beaucoup inspirer. Je vous conseil d'ailleurs d'aller lire son histoire elle est vraiment génial !
Crossover - Stargate: SG-1 & Halo - Rated: T - French - Sci-Fi/Adventure - Chapters: 5 - Words: 51,192 - Reviews: 25 - Favs: 16 - Follows: 21 - Updated: 1/23 - Published: 12/31/2022 - Gen. Hammond, J. O'Neill, J. Cutter, E. Anders
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: 4 - Words: 22,683 - Reviews: 11 - Favs: 19 - Follows: 35 - Updated: 1/22 - Published: 6/13/2022 - D. Jackson, J. O'Neill, Marc S., Steven G.
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: 10 - Words: 111,462 - Reviews: 328 - Favs: 869 - Follows: 1,225 - Updated: 1/17 - Published: 4/30/2020
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: 16 - Words: 47,311 - Reviews: 35 - Favs: 61 - Follows: 90 - Updated: 1/17 - Published: 12/20/2021
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: 11 - Words: 34,476 - Favs: 4 - Follows: 5 - Updated: 1/16 - Published: 8/17/2022 - OC, Rodney M., Teyla E., Ronon D. - Complete
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: 4 - Words: 8,414 - Reviews: 2 - Favs: 12 - Follows: 14 - Updated: 1/13 - Published: 10/17/2022
Not Who I Think I Am by kattracks9599 reviews
Part 1 of the Not Who I Think I Am Series. Examining Loki's experiments on Jack the Asgard uncover experiments done not just on Sam, but Helen also. Set at the end of season 7 of SG1 and the start of Sanctuary. Episodes will from both shows will have minor changes and Sanctuary Episodes will be out of order to better fit with the stories.
Crossover - Stargate: SG-1 & Sanctuary - Rated: T - English - Drama/Suspense - Chapters: 17 - Words: 57,753 - Reviews: 50 - Favs: 72 - Follows: 132 - Updated: 1/12 - Published: 12/21/2014 - [S. Carter, J. O'Neill] [Helen M., Nikola T.]
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: 2 - Words: 3,662 - Updated: 1/11 - Published: 1/6 - Buffy S., Faith L., J. O'Neill, Teal'c
All Bets Are Off by Eleri McCleod reviews
As Harm begins his inprocessing training at the SGC, he discovers there's more to learn than simply how to stay alive off-world. JAG/SG-1 crossover; 5th in the "Honor Bound" series.
Crossover - JAG & Stargate: SG-1 - Rated: T - English - Drama/Sci-Fi - Chapters: 5 - Words: 18,568 - Reviews: 16 - Favs: 17 - Follows: 36 - Updated: 1/7 - Published: 12/10/2022 - H. Rabb, Braítac, J. O'Neill, Teal'c
Harry Potter and the Stargate Adventure by EtheSlytherinLion reviews
Harry Potter and his 3 wives have decided that they needed to move on to the Next Great Adventure and end up on a new planet. Soon they come in contact with a team of explorers, it happens to be SG-1 and the world will never be the same. ABANDONED
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 2 - Words: 11,352 - Reviews: 31 - Favs: 215 - Follows: 347 - Updated: 1/3 - Published: 11/16/2020 - Complete
Snaked by LithosLethe reviews
Close encounters with a Goa'uld? Yeah, this probably isn't gonna be one of Naruto's better days.
Crossover - Stargate: SG-1 & Naruto - Rated: K - English - Drama/Adventure - Chapters: 2 - Words: 2,014 - Reviews: 4 - Favs: 11 - Follows: 22 - Updated: 1/2 - Published: 11/13/2022 - Complete
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: 5 - Words: 7,656 - Favs: 1 - Follows: 2 - Updated: 12/28/2022 - Published: 8/1/2022 - Buffy S., Faith L., J. O'Neill, Teal'c - Complete
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