Stargate: SG-1 Crossovers
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Perfidy by DownloadWasTaken reviews
Colonel O'Neill, Major Carter and civilian anthropology consultant Doctor Jackson work at the Black Mesa Research Facility in the Lambda Labs.
Crossover - Stargate: SG-1 & Half-Life - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 8,476 - Reviews: 12 - Favs: 9 - Follows: 12 - Updated: 4/9/2020 - Published: 8/4/2019 - S. Carter, D. Jackson, J. O'Neill
Wasteland Gate by KyliaQuilor reviews
Following the NCR Victory at Second Hoover Dam, Victoria Fernandez, the Courier who made it happen, learns from Mr. House's files of a top-secret pre-War Military project called "Project Blue Book" under Cheyenne Mountain. Curiosity and concern at what House was planning sends Victoria on a trip across the West - and then into the stars as the Wasteland rediscovers the Stargate.
Crossover - Stargate: SG-1 & Fallout - Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 66,296 - Reviews: 47 - Favs: 103 - Follows: 137 - Updated: 4/4/2020 - Published: 2/25/2019 - S. Carter, Courier, Arcade G., Veronica S.
Death's Spawn Redux by Confushi Sushi reviews
When SG-1 stumbles upon strange phenomena on a wayward planet, the consequences prove to be more far-reaching than anyone could expect. Re-envisioning of my older story "Deaths Spawn"
Crossover - Stargate: SG-1 & New Jedi Order - Rated: M - English - Adventure/Angst - Chapters: 23 - Words: 219,013 - Reviews: 46 - Favs: 39 - Follows: 48 - Updated: 4/2/2020 - Published: 2/19/2014 - S. Carter - Complete
Whispers of Power by LoneWolf1968 reviews
This is the next story in the series beginning with Desperate Decisions. It begins roughly two months after the Rebel Alliance evacuation from Yavin 4. Destiny has found a new galaxy teaming with life, technology, and power. Will it provide answers to their questions or just more questions?
Crossover - Star Wars & Stargate: SG-1 - Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 10,265 - Reviews: 14 - Favs: 72 - Follows: 90 - Published: 4/1/2020
Siege Breaker by Just a Crazy-Man reviews
The Cylon Homeworld is under siege from the Goa'uld/ Colonial combine fleet, and only one small Earth ship is near enough to answer their despite call for add. And turn the tide of this fight.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 12 - Words: 9,663 - Reviews: 51 - Favs: 90 - Follows: 131 - Updated: 3/30/2020 - Published: 6/29/2010 - C. Mitchell, Number Six
Into the Wild Blue Yonder by Spirit Seer reviews
The Stargate Program is the best-kept international secret...after the national personifications, of course. When SG-1 meets Alfred by accident, they learn about a secret guarded closer than their own. The rules existed to keep the worlds apart, and sometimes, the lines are better left uncrossed. [AU. No pairings. Revisions complete for now.]
Crossover - Stargate: SG-1 & Hetalia - Axis Powers - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 18 - Words: 76,670 - Reviews: 36 - Favs: 83 - Follows: 94 - Updated: 3/20/2020 - Published: 2/8/2014
The Serpent's Reflection by Rahar Moonfire reviews
Post SG-1 ep 'Point of View.' Dr. Samantha Carter works towards include Earth in the Asgard's Protected Planets Treaty. But she also wants revenge for her murdered husband and the attack on Earth by permanently ending the System Lords and all they stand for. To do that, she needs the help of a Goa'uld who helped spark a similar rebellion under a Nameless Pharaoh 5,000 years ago.
Crossover - Stargate: SG-1 & Yu-Gi-Oh - Rated: T - English - Sci-Fi/Supernatural - Chapters: 4 - Words: 15,184 - Reviews: 18 - Favs: 56 - Follows: 68 - Updated: 3/17/2020 - Published: 6/29/2019 - S. Carter, D. Jackson, Yami Yūgi, S. Kaiba
Bugbot by lizardsocks reviews
SG-1 detects signs of a possible human presence on the frog planet P4A-013.
Crossover - Stargate: SG-1 & Amphibia - Rated: K - English - Humor/Sci-Fi - Chapters: 1 - Words: 2,872 - Reviews: 1 - Favs: 7 - Follows: 8 - Published: 3/16/2020 - S. Carter, D. Jackson, Anne, Sprig - Complete
Reunion by Kelral Orlyana reviews
Normally dying meant the end of everything, it meant eternal peace. Normally. But one unfortunate Tok'ra is about to find out that life and death doesn't always work out the way it is meant to.
Crossover - Stargate: SG-1 & Red Dead Redemption - Rated: T - English - Angst - Chapters: 11 - Words: 25,587 - Reviews: 13 - Favs: 9 - Follows: 11 - Updated: 3/15/2020 - Published: 8/12/2012
Stargate 117 by BIG Z1776 reviews
When the UNSC finds a Stargate and decides to use it things happen in a way never before seen. The most powerful Human entity in the galaxy has arisen to take the galaxy back from evil and oppression. But the road ahead is long and tough, and Earth will look to its mightiest champions to take the fight to their enemies. No Covenant or Forerunners. Normal SG-1 bad guys and setting.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 37,601 - Reviews: 252 - Favs: 498 - Follows: 591 - Updated: 3/12/2020 - Published: 10/7/2013
A Brutal Reality by BIG Z1776 reviews
NOW BEING REWRITTEN. The Colonials have just started taking their first steps into a much larger galaxy where danger, friends, and the unknown lie around every corner. And Earth has now taken the next huge step into the galaxy and its rise to superpower is all but inevitable. So what's to stop them? Old enemies from the past thought to be gone and new ones not yet seen.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 31 - Words: 180,663 - Reviews: 513 - Favs: 579 - Follows: 722 - Updated: 3/12/2020 - Published: 2/15/2015
JAFFA HARRIS by LenSilvan reviews
On his road trip, Xander Harris meets Goa'uld Setesh (Stargate SG-1) who turns him into a Jaffa and places clone of himself into Xander's pouch.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 11,275 - Reviews: 11 - Favs: 80 - Follows: 114 - Updated: 3/10/2020 - Published: 7/27/2019 - Xander H., Teal'c
The Eltarian Chronicles by anyabar1987 reviews
Finally back to after being deleted. SG1 has to learn to open their eyes to see a bigger picture at play and to learn more about the forces at work in the galaxy. I am not sure how far this will go as my physical notes were lost but if you review and give me a lot of positive feedback I might be able to piece together the rest of the story.
Crossover - Stargate: SG-1 & Power Rangers - Rated: T - English - Chapters: 23 - Words: 84,625 - Reviews: 2 - Favs: 22 - Follows: 23 - Published: 3/2/2020
Gate of Shadows by Demoness Simi reviews
We know the story of how the shadows were sealed, and many of us know the tale of the Stargate and how it was buried. But no one knows that the two tales are actually intertwined...until now.
Crossover - Stargate: SG-1 & Yu-Gi-Oh - Rated: M - English - Chapters: 3 - Words: 8,313 - Reviews: 5 - Favs: 16 - Follows: 21 - Updated: 2/19/2020 - Published: 2/11/2020
Stargate: Revan by MasterRevan reviews
After his final defeat on Yavin, IV Revan finds himself in a galaxy far far away. Now he has to deal with a group of crazed parasites with illusions of grandeur, help a race that has become a shadow of its former selves, and maybe help bring balance to a galaxy filled with new enemies and allies. (AU!, OP Revan, OOC Revan, I like a story with a happy ending sue me)
Crossover - Stargate: SG-1 & Star Wars - Rated: T - English - Sci-Fi/Parody - Chapters: 8 - Words: 93,615 - Reviews: 31 - Favs: 203 - Follows: 274 - Updated: 2/17/2020 - Published: 1/5/2020 - Revan
Stargate Shangri-la by Shagohad12 reviews
After years of shame and ridicule, archaeologist and explorer Lyra Heartstrings stumbles across a discovery that validates all her theories and ideas in one fell swoop. Along with her best friend, Bon Bon, and her old classmate Cadance, they find themselves faced with a mystery and marvel that may change everything. This story is primarily published by myself on Fimfiction
Crossover - Stargate: SG-1 & My Little Pony - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 158,153 - Reviews: 8 - Favs: 26 - Follows: 34 - Updated: 2/16/2020 - Published: 8/24/2017 - S. Carter, D. Jackson, Lyra, Bon Bon
My Mommy, the Hok'tar by mmooch reviews
Buffy's pregnant, but who's the lucky guy? Pairing unsure for now. WARNING: Character death.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Family - Chapters: 11 - Words: 18,255 - Reviews: 124 - Favs: 183 - Follows: 271 - Updated: 2/15/2020 - Published: 10/27/2010 - Buffy S.
Zeppo no more am I (Rewrite) by Sentinel1977 reviews
A Story by stargatesg1fan1 found around the internet. He has a lot of Story's around other sites. Look inside to know where i found this one. I liked his Story a lot. It just seemed to rushed at Times. Hey stargatesg1fan1 if you don't like me rewriting this one. Send me a PM and i will remove it. Hope you will give me a Chance. #fingerscrossed 1. Cleanup 2. Rewrite
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Sci-Fi/Romance - Chapters: 5 - Words: 26,156 - Reviews: 16 - Favs: 136 - Follows: 169 - Updated: 2/15/2020 - Published: 12/17/2019 - Xander H., Calendar, J., Cordelia C., S. Carter
Venturing into the Unexpected by erttheking reviews
What is supposed to be another routine planet exploration for SG-1 takes a turn for the unexpected and bizarre when they find a planet that defies all previous expectations. Patreon sponsored one-shot
Crossover - Stargate: SG-1 & RWBY - Rated: T - English - Chapters: 1 - Words: 7,013 - Reviews: 23 - Favs: 115 - Follows: 100 - Published: 2/5/2020
Col Amethyst by lizardsocks
O'Neill ends up in a world that seems pretty familiar - except that an alien named Pearl comes through the Stargate behind him, and someone named Amethyst has his job.
Crossover - Stargate: SG-1 & Steven Universe - Rated: K - English - Sci-Fi - Chapters: 8 - Words: 8,123 - Favs: 5 - Follows: 3 - Updated: 2/5/2020 - Published: 11/30/2019 - J. O'Neill, Amethyst, Pearl - Complete
Scattered Leaves Part 1 by Mini Goat reviews
Lost in time. Mal takes a bounty only to find that as usual, nothing is as it seems.
Crossover - Stargate: SG-1 & Firefly - Rated: M - English - Romance/Western - Chapters: 17 - Words: 26,498 - Reviews: 43 - Favs: 17 - Follows: 18 - Updated: 1/29/2020 - Published: 1/10/2020 - [J. O'Neill, S. Carter] Mal, R. Tam
The Chosen Ones and the Path Of Truth- Book I: The Return To Tatooine by BazzCatgirl03 reviews
During a mission SG-1 learns that their mission is protecting Anakin Skywalker from the time he is 9 years old to help Anakin from getting turned to the dark-side. Combined with that mission comes a shocking truth to Daniel and where his intuition of his skills are demonstrated, resolved to take the mission they decide to fix their bonds as their new mission is based in his galaxy.
Crossover - Star Wars & Stargate: SG-1 - Rated: T - English - Romance/Sci-Fi - Chapters: 46 - Words: 517,859 - Reviews: 22 - Favs: 84 - Follows: 88 - Updated: 1/23/2020 - Published: 2/19/2014 - Anakin Skywalker, Padmé Amidala, S. Carter, D. Jackson - Complete
Stargate Legacy by zooropa1
SG1/PTL crossover with original characters
Crossover - Stargate: SG-1 & Poltergeist: the Legacy - Rated: T - English - Sci-Fi/Supernatural - Chapters: 1 - Words: 24,768 - Favs: 1 - Published: 1/22/2020 - S. Carter, J. O'Neill, Alex M., Nick B.
Assimilating the Ancients by Acaykath reviews
A spacial anomaly crashes a Borg cube in a universe not their own. Very little of their technology survives the crash. The Borg must create a new collective and conquer the universe to find a way to rejoin their brethren. They will not be stopped. Resistance is futile.
Crossover - StarTrek: Voyager & Stargate: SG-1 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 5,646 - Reviews: 10 - Favs: 44 - Follows: 51 - Published: 1/11/2020
Idea Haec Mala by How-not-to-do-something reviews
When they won the battle, they thought it was over. Too bad the universe had other ideas. Rated T for violence and some mature content.
Crossover - Stargate: SG-1 & RWBY - Rated: T - English - Adventure - Chapters: 3 - Words: 18,260 - Reviews: 14 - Favs: 37 - Follows: 47 - Updated: 1/4/2020 - Published: 5/15/2019
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