
Stargate: SG-1
Crossovers
Filters
3.1K | Page 1 2 3 4 11 .. Last Next »
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 - Published: 3h
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: 18 - Favs: 9 - Follows: 12 - Updated: 9h - Published: 6/7 - S. Carter, D. Jackson, J. O'Neill, Gen. Landry
Slayer Scrolls by
Ellmarr reviews
Can two children who are just learning to survive save the worlds or do the Fates have other plans for them- a Multi-Cross Over events - Buffy the Vampire Slayer, Stargate SG-1, TMNT, Gargoyles, Criminal Minds, Skyrim, Supernatural. Takes place just before the defeat of the First.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Adventure/Sci-Fi - Chapters: 23 - Words: 164,727 - Reviews: 2 - Favs: 12 - Follows: 17 - Updated: 23h - Published: 1/27 - Faith L.
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: 565 - Favs: 1,643 - Follows: 2,049 - 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: 2 - Words: 19,869 - Reviews: 55 - Favs: 310 - Follows: 541 - Updated: 5/31 - Published: 11/23/2022 - Harry P.
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: 36 - Words: 188,596 - Reviews: 296 - Favs: 283 - Follows: 310 - Updated: 7/1 - Published: 5/23/2022 - S. Carter, D. Jackson, Rick/Hikaru, Claudia
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
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: 93 - Words: 639,993 - Reviews: 224 - Favs: 164 - Follows: 177 - Updated: 7/1 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
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: 3 - Words: 6,908 - Reviews: 12 - Favs: 5 - Follows: 11 - Updated: 7/1 - Published: 6/19
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
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: 11 - Words: 14,695 - Favs: 3 - Follows: 2 - Updated: 6/30 - Published: 5/7 - S. Carter, J. O'Neill, Jack D., MacGyver
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: 23 - Words: 179,790 - Reviews: 187 - Favs: 204 - Follows: 212 - Updated: 6/29 - Published: 1/10 - C. Kawalsky, Thor, Harry P.
Harry Headlines At Glastonbury by
tyrannicpuppy reviews
Since the war, Harry has taken to exploring long-forgotten places as a chance to escape his extensive and unwanted fame. But what he found in the depths of Glastonbury Tor will change not only his own life, but the future of all.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Sci-Fi - Chapters: 45 - Words: 304,605 - Reviews: 1009 - Favs: 2,544 - Follows: 3,518 - Updated: 6/29 - Published: 10/1/2021 - [Harry P., Hermione G.] Luna L., Merlin
Jump 142 by
SFD reviews
We've been here already, right? Colonials explain that there are no aliens. That whoever they met are the 13th tribe. Then get blown to pieces. This time, of all the races in the galaxy, the poor colonials stumble upon the Nox homeworld. The Nox won't hurt a living being. They just want those annoying humans to go away. Also, are the Cylons truly living beings? Intriguing...
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 4,970 - Reviews: 7 - Favs: 29 - Follows: 33 - Published: 6/29 - Lya, Opher, W. Adama, L. Roslin
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: 9 - Words: 41,425 - Reviews: 73 - Favs: 206 - Follows: 282 - Updated: 6/29 - Published: 10/12/2022 - [Hakuno K., Gilgamesh] J. O'Neill, Ba'al
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: 17 - Follows: 23 - Updated: 6/27 - Published: 6/17 - Gen. Hammond, J. O'Neill, Leroy Jethro Gibbs - Complete
Harry and the Unexpected by
ts-29 reviews
What would happen if SG1 brought someone back on there first Mission after killing Ra
Crossover - Stargate: SG-1 & Harry Potter - Rated: K - English - Romance - Chapters: 5 - Words: 6,588 - Reviews: 32 - Favs: 166 - Follows: 240 - Updated: 6/23 - Published: 5/30 - S. Carter, Harry P., Hermione G.
Stargate, Top Gun by
Kody Wright 2 reviews
Pete "Maverick" Mitchell is recruited into the SGC to assist on a top secret search and rescue mission. Picks up after Top Gun, Maverick.
Crossover - Stargate: SG-1 & Top Gun - Rated: K+ - English - Chapters: 5 - Words: 9,260 - Reviews: 15 - Favs: 27 - Follows: 35 - Updated: 6/22 - Published: 5/18
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: 167 - Favs: 752 - Follows: 1,166 - Updated: 6/20 - Published: 11/18/2022 - S. Carter, J. O'Neill, Harry P.
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: 27 - Words: 176,620 - Reviews: 315 - Favs: 319 - Follows: 480 - Updated: 6/18 - Published: 10/6/2021
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: 30 - Words: 154,547 - Reviews: 453 - Favs: 357 - Follows: 411 - Updated: 6/17 - Published: 3/19/2017 - J. O'Neill, W. Adama
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: 98 - Follows: 174 - 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: 80 - Favs: 126 - Follows: 216 - Updated: 6/4 - Published: 3/23/2022
3.1K | Page 1 2 3 4 11 .. Last Next »