Stargate: SG-1 Crossovers
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Stargate Universe Season Four by Commmander Nash reviews
Sequel to Stargate Universe Season Three. Has Spera survived ? Will the somebody from Earth reach Destiny ? And if they do, who will be in control of the Ancient Vessel ? Colonel Young, the Lucian Alliance or somebody else ? And will Eli Wallace be among the living ?
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: M - English - Sci-Fi/Adventure - Chapters: 30 - Words: 55,259 - Reviews: 18 - Favs: 22 - Follows: 27 - Updated: 12/31/2019 - Published: 7/21/2019 - J. O'Neill, J. Hailey, A. Porter, A. Teldy - Complete
The Wonder Slayer's Mother by Mia Lee 75 reviews
What would happen if Diana & Steve's daughter was more then just mommy Little Angel? What if she had the destiny to be one girl in all the world? What if she was the last Chosen One? What if Faith had a Mother who actually cared? What if that Mother was a little more then she seemed? What if Faith came from a different line of Women Warriors?
Crossover - Stargate: SG-1 & Underworld - Rated: T - English - Chapters: 17 - Words: 56,241 - Reviews: 38 - Favs: 15 - Follows: 17 - Updated: 12/29/2019 - Published: 12/6/2019 - S. Carter, J. Fraiser, Selene
Retour aux sources by oOoPlumeStilinskioOo reviews
Pas, encore eux et pas encore des aliens (...)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: M - French - Sci-Fi/Adventure - Chapters: 2 - Words: 2,076 - Reviews: 5 - Favs: 1 - Follows: 1 - Published: 12/28/2019 - S. Carter, Rodney M., Ronon D., David S./Sheppard
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: 7 - Words: 40,049 - Reviews: 23 - Favs: 7 - Follows: 9 - Updated: 12/27/2019 - Published: 4/30/2019
Stargate: Thirdspace by Spearhead reviews
When a Taskforce of the Tau'ri Federation Navy is attacked on a mission of exploration, a strange occurrence catapults this force into a new universe. The events that sent them to this universe, also brings war to the Tau'ri Federation. A war of annihilation and extinction.
Crossover - Babylon 5 & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 22,099 - Reviews: 175 - Favs: 273 - Follows: 341 - Updated: 12/27/2019 - Published: 8/27/2012
Link Times Three by DoctorEd17 reviews
Lincoln Loud finds an a hidden Ancient repository containing not knowledge but... Well, read and find out... Please review after reading and Rated T to be safe. There are also elements from "Split" and Stargate Atlantis well.
Crossover - Stargate: SG-1 & Loud House - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 9,140 - Reviews: 4 - Follows: 2 - Updated: 12/26/2019 - Published: 12/23/2019 - OC, Lincoln L., Lisa L.
Shipping It Stargate Style by Weldon Kenfield reviews
We know what happened to the Odyssey. The bubble timeline never occurred and Teal'c saved the day by sacrificing decades of his life. Or do we? Tampering with time is rarely that simple. What happens when reality shatters and the Ascended have to pick up the pieces? A bullied girl in a locker becomes one of the most advanced ships imagined. Rated T for Worm-style swearing.
Crossover - Stargate: SG-1 & Worm - Rated: T - English - Sci-Fi/Humor - Chapters: 4 - Words: 12,731 - Reviews: 129 - Favs: 717 - Follows: 993 - Updated: 12/26/2019 - Published: 8/12/2018 - S. Carter, D. Jackson, Vala, Skitter
Ancient Legos by Weldon Kenfield reviews
This is a Crackfic, meaning the story is not intended to be taken seriously. Ancient Legos is written for laughs and humor. A Self Insert story, Weldon is a teenager living in Brockton Bay on Earth Bet. Somehow without triggering, he starts getting... Ideas. Features Lego Spaceships. T because of light, Worm-style swearing and a comfy chair joke.
Crossover - Stargate: SG-1 & Worm - Rated: T - English - Chapters: 14 - Words: 62,555 - Reviews: 347 - Favs: 1,015 - Follows: 1,199 - Updated: 12/26/2019 - Published: 10/28/2017
Under the Mistletoe by Tanista2
Six women at Christmastime, six kisses under the mistletoe. Chronological vignettes of the season. (Ad Astra 'verse)
Crossover - Stargate: SG-1 & MacGyver - Rated: K+ - English - Romance - Chapters: 6 - Words: 6,696 - Published: 12/25/2019 - S. Carter, J. O'Neill, Catherine L., MacGyver - Complete
Shield of the Systems Alliance by J26596 reviews
What if when a world war looked likely all alien tech was taken off world and that developed into a colony and a spy agency that was better than Cerberus and was close to, but unknown by, the Alliance? An agency that worked in that shadows to keep humanity safe from threats; alien and internal. SHIELD, born from the closure of the SGC and IOA. Stargate and ME crossover
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 34,388 - Reviews: 92 - Favs: 215 - Follows: 301 - Updated: 12/20/2019 - Published: 11/14/2019
Jimmy Evans by TheNewJeniferChurch reviews
Harry runs away to America and eventually joins the Air Force under an assumed name. He ends up on SG-20, and is captured by Herur. His host is damaged, so he tries to take Harry as a replacement. Big mistake. Chapter 3 is up.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Drama - Chapters: 4 - Words: 15,255 - Reviews: 171 - Favs: 905 - Follows: 1,585 - Updated: 12/15/2019 - Published: 1/24/2019 - S. Carter, D. Jackson, J. O'Neill, Harry P.
Rough Draft by Shadow Goat Alice reviews
THTJB - It is young Jennifer Hailey's first day in her new home. She may find herself needing to make some personal adjustments to get along with her new house mate.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K+ - English - Drama/Family - Chapters: 4 - Words: 6,919 - Reviews: 5 - Favs: 1 - Follows: 2 - Updated: 12/14/2019 - Published: 11/5/2019
Different Breeds by Shiggity Shwa
Set during 10x03, McKay finally gets to explain his joke to Vala. Cannon compliant SGA/SG-1 crossover. Oneshot
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K - English - Friendship/Humor - Chapters: 1 - Words: 2,426 - Favs: 2 - Published: 12/11/2019 - Vala, Rodney M., John S. - Complete
Unintended consequences by fanfictionfanaticX reviews
A small change in the past by SG-1 may have unexpected side effects for the rest of the galaxy.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Chapters: 16 - Words: 308,339 - Reviews: 371 - Favs: 477 - Follows: 681 - Updated: 12/10/2019 - Published: 6/17/2018
Secret Whitelighter by Mirrored Illusions reviews
Prue Halliwell becomes SG-1's Whitelighter after she dies. Now it's her job to tell Daniel Jackson that there are other options beside death and ascension.
Crossover - Stargate: SG-1 & Charmed - Rated: T - English - Drama - Chapters: 1 - Words: 1,427 - Reviews: 2 - Favs: 9 - Follows: 13 - Published: 12/5/2019 - D. Jackson, Prue H. - Complete
The Evil Within by Aianoir reviews
An unfortunate grave robber frees a member of an unknown race from a Sith tomb. Just how will this new player from another galaxy change the face and fate of the galaxy? Warnings inside. Rated M for mature content. Slash.
Crossover - Star Wars & Stargate: SG-1 - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 8,088 - Reviews: 10 - Favs: 17 - Follows: 22 - Updated: 12/2/2019 - Published: 11/20/2019
Rex Serpentis by tempest13c reviews
Un unlucky man who just happens to be avid Fanfiction reader finds himself in an awfully cliche Isekai setup after dying from what was more than likely a truck. But able to choose a world of the new adventure he obviously goes for Harry Potter world. Unfortunately, he doesn't get to have any magic of his own, but it is nothing that a little possession won't fix. Goa'uld!OC
Crossover - Harry Potter & Stargate: SG-1 - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 23,827 - Reviews: 46 - Favs: 294 - Follows: 414 - Updated: 12/2/2019 - Published: 10/28/2019 - OC
Harry Potter's most excellent adventure by wolfd890 reviews
Harry Potter simply wanted to take a break from being everyone's hero. Who'd have thought that being kidnapped by Jaffa out of some lousy Diner would do the trick? Poor SG1. They have no idea how far down the rabbit hole goes. Harry Potter/Stargate Crossover, eventual AU (COMPLETE, if you can believe it!)
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Humor/Adventure - Chapters: 21 - Words: 143,446 - Reviews: 950 - Favs: 2,966 - Follows: 3,612 - Updated: 11/28/2019 - Published: 11/16/2015 - J. O'Neill, Vala, Harry P. - Complete
Aftekdak - Missing You by Mini Goat reviews
Sam spends her first Christmas on Atlantis but there's no place like home
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K+ - English - Family/Friendship - Chapters: 1 - Words: 7,571 - Reviews: 5 - Favs: 9 - Follows: 2 - Published: 11/27/2019 - S. Carter, Rodney M., John S., Teyla E. - Complete
This Isn't Kansas by andrewjameswilliams reviews
Returning from Orilla the Odyssey engages in a fierce battle with the Ori the outcome of which catapults the ship and her crew into a different universe full of dangers beyond anything encountered by the SGC before.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 100,194 - Reviews: 285 - Favs: 516 - Follows: 572 - Updated: 11/26/2019 - Published: 4/5/2014 - D. Jackson, C. Mitchell, Gloval, Karl/River
Hunting King Arthur by d'elfe reviews
This story is the continuation of 'All hail to the King' and 'the lone knight' posted in the King Arthur section of the Frances series. Frances and Kristan join SG1 to Camelot in hopes of finding Merlin's weapon.
Crossover - Stargate: SG-1 & King Arthur - Rated: K - English - Romance/Adventure - Chapters: 8 - Words: 38,718 - Reviews: 5 - Favs: 1 - Follows: 1 - Updated: 11/25/2019 - Published: 11/16/2019 - J. O'Neill, C. Mitchell, OC
al-Atfal Huthe al-Ayyam - Kids These Days by Mini Goat reviews
THTJB Eli likes Jack, even if he is a bit gruff. Enough to pretend he didn't just see that.
Crossover - Stargate: SG-1 & Stargate: Universe - Rated: K+ - English - Humor/Friendship - Chapters: 1 - Words: 1,556 - Reviews: 1 - Favs: 2 - Follows: 1 - Published: 11/25/2019 - Complete
Rakoub Seria - Fast Ride by Mini Goat reviews
THTJB – Jack has a mission and an unlikely collection of helpers to accomplish it
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Humor/Friendship - Chapters: 7 - Words: 9,581 - Reviews: 6 - Favs: 1 - Follows: 2 - Updated: 11/23/2019 - Published: 11/16/2019 - Complete
Assuming the Mantle by LoneWolf1968 reviews
Sequel to Desperate Decisions. Adding in BSG 2003 with a bit of a twist to who the Lords of Kobol might be.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 38,829 - Reviews: 62 - Favs: 140 - Follows: 171 - Updated: 11/21/2019 - Published: 10/16/2015 - Complete
Contact at the Citadel by wilkins75 reviews
Sequel to Contact of Kobol and Contact of Races. Earth and other worlds are united in the Tau'ri Alliance, with the advance technology from the Ancients and the Asgard they are the most advanced culture in the Galaxy. Now they must travel to a distant galaxy to finish the mission of the Destiny only to contact the Citadel Council and the Reapers. (Stargate Sg1/Mass Effect)
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 21 - Words: 177,578 - Reviews: 1116 - Favs: 1,212 - Follows: 1,535 - Updated: 11/18/2019 - Published: 4/23/2018
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