Stargate: SG-1 Crossovers
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The DASS Requirement by feauxen reviews
The Dumbledore's Army Space Ship Requirement sails again! This time with goa'uld, SG-1, and consequences that probably aren't a joke. (Consequences not included, may contain products harmful to the mental development of children under seven years of age.) This story was inspired by another work on this site, see author's notes for details.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 4,445 - Reviews: 4 - Favs: 39 - Follows: 54 - Updated: 4h - Published: 5/13 - J. O'Neill, Harry P. - Complete
Sisters, the adventures of Samantha and Buffy Carter by FPBarbieri reviews
Samantha Carter, prodigy. Buffy Carter Summers, loving little sister. The story of their lives, together and apart.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Drama/Family - Chapters: 16 - Words: 37,688 - Reviews: 11 - Favs: 11 - Follows: 23 - Updated: 11h - Published: 6/1/2021 - S. Carter
The Defensive Space Force Ship Requirement by tkepner reviews
Harry Potter, and the rest of Dumbledore's Army in his fifth year, use the Room of Requirement to get themselves a spaceship! The problems of a tiny island on Earth don't seem so important, anymore. Wizards in Space! What could possibly go wrong with that? Eventually, this will be a crossover with Stargate SG-1.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Fantasy/Sci-Fi - Chapters: 24 - Words: 143,407 - Reviews: 802 - Favs: 1,334 - Follows: 1,905 - Updated: 5/23 - Published: 12/11/2021 - Gen. Hammond, Harry P., Hermione G., Lee J.
Requiem IV by bearhug562000
While Joyce is hosting a "Mother-Daughter Night" to bring her, Buffy, Dawn, and Athena and Diana together, the rest of the gang is dealing with a bizarre string of murders across Sunnydale. Meanwhile, Eppy and Spidey warn Stargate Command of a dire threat to the Earth's existence.
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 6,006 - Follows: 1 - Updated: 5/23 - Published: 3/7 - Buffy S., Faith L., J. O'Neill, Teal'c
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: 1 - Words: 5,829 - Reviews: 10 - Favs: 55 - Follows: 75 - Published: 5/23 - S. Carter, D. Jackson, Rick/Hikaru, Claudia
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: 8 - Words: 26,893 - Reviews: 10 - Favs: 48 - Follows: 61 - Updated: 5/23 - Published: 12/16/2021
Contact of the Gate by yngthlet reviews
A Reimaging of wilkins75 Contact at Kobol series. Some changes have been made to make it closer to the Srargate EU. This Remigaing will contain camemeos (and more) from other franchises as well.
Crossover - Stargate: SG-1 & Misc. Tv Shows - Rated: T - English - Sci-Fi/Fantasy - Chapters: 7 - Words: 16,972 - Reviews: 7 - Favs: 24 - Follows: 32 - Updated: 5/23 - Published: 2/17
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: 17 - Words: 118,128 - Reviews: 262 - Favs: 755 - Follows: 984 - Updated: 5/22 - Published: 9/29/2021 - S. Carter, D. Jackson, J. O'Neill, OC
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: 9 - Words: 29,933 - Reviews: 83 - Favs: 78 - Follows: 104 - Updated: 5/22 - Published: 3/17
Stargate Salvation by Uni40 reviews
Stargate Salvation is a Time Travel fix it in Stargate, this is on a massive scale. The Aschen have destroyed Earth now the last Tau’ri takes revenge. I have place SGU on an accelerated timeline so that SGU season 1 and SGA season 5 take place simultaneously. This includes All of the Stargate Tv and movies except for Origins.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K - English - Sci-Fi - Chapters: 2 - Words: 4,668 - Reviews: 3 - Favs: 3 - Follows: 10 - Updated: 5/22 - Published: 5/21 - J. O'Neill, Thor, Elizabeth W., Teyla E.
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: 35 - Words: 243,472 - Reviews: 80 - Favs: 98 - Follows: 115 - Updated: 5/20 - Published: 9/25/2021 - [Adora/She-Ra, Catra] S. Carter, J. O'Neill
Star Granger - Season 4 by SFD reviews
The story so far: In the beginning, Isis tried to take over Hermione. This has made many people angry, mainly Harry and Hermione herself, and been widely regarded as a bad move on her part. Now, with some of Isis's knowledge about how exciting and dangerous the greater galaxy can be, they prepare to do something about it. With a team, ships, and allies - it's time to go to war!
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 37,439 - Reviews: 58 - Favs: 305 - Follows: 478 - Updated: 5/19 - Published: 1/27 - S. Carter, D. Jackson, Harry P., Hermione G.
Stargate:Spartan Siege by Johnnieboy11 reviews
After the battle on Mantle's Approach, the Chief finds himself, alongside a non-rampant Cortana, helping the Humans of a galaxy similar, yet different to his own, battle their enemies, while exploring the countless worlds tied together by a network of ancient portals and uncovering the mysteries surrounding these worlds.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 17,904 - Reviews: 60 - Favs: 314 - Follows: 470 - Updated: 5/17 - Published: 12/24/2020 - D. Jackson, J. O'Neill, Teal'c, Master Chief/John-117
Mechanical Warfare by CPB99 reviews
(Sequel to Rise of a new System Lord.). Four years after Jack ends the war with the Goa’uld, a new threat rises from the ashes of a formidable foe. Only he can stop it and to do so, he must leave home for Atlantis.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure - Chapters: 34 - Words: 20,573 - Reviews: 18 - Favs: 7 - Follows: 12 - Updated: 5/17 - Published: 12/13/2021 - J. O'Neill, S. Carter, John S., Teyla E.
Celeste by Amelia E. Adler reviews
Continuation of Midnight Blue, Azure, and Shades of Blue: Intermission. After returning to her own timeline, Alice Boyd has to deal with the fallout. Chasing and confronting her nemesis will only be a part of her struggle; more than anything, she will have to face her own emotions, and who knows where they'll lead her in the end... OC with no AU - futurefic.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 31 - Words: 210,391 - Reviews: 88 - Favs: 31 - Follows: 43 - Updated: 5/16 - Published: 3/4/2021
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: 23 - Words: 132,522 - Reviews: 234 - Favs: 207 - Follows: 209 - Updated: 5/15 - Published: 7/14/2011 - OC
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: 4 - Words: 5,611 - Reviews: 49 - Favs: 71 - Follows: 131 - Updated: 5/15 - Published: 3/23
The Battle for Catachan Secundus by Kamakasie reviews
What wars may come from zealots and false gods fighting among the foliage.
Crossover - Stargate: SG-1 & Warhammer - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 3,187 - Reviews: 3 - Favs: 7 - Follows: 11 - Updated: 5/12 - Published: 4/1/2020
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: 15 - Words: 95,482 - Reviews: 392 - Favs: 1,564 - Follows: 2,294 - Updated: 5/8 - Published: 10/1/2021 - [Harry P., Hermione G.] Luna L., Merlin
Patronus or Boggart by JNTK984 reviews
A Cosmic Convention is being held, and one booth has the option for visitors to find out their Patronus or to see what their Boggart is.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Humor/Fantasy - Chapters: 1 - Words: 1,200 - Reviews: 1 - Favs: 7 - Follows: 4 - Published: 5/7 - S. Carter, J. O'Neill, Harry P., Hermione G.
The Alus effect Book one by Robotech1984 reviews
This is a re-write of my original story The Archangel Effect Book one Stargates & Veritechs V1. Please enjoy and if you would like to see what the Alus looks like please copy the link in the first chapter to visit my Deviant Art page.
Crossover - Stargate: SG-1 & Anime X-overs - Rated: K - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 15,046 - Reviews: 8 - Favs: 23 - Follows: 35 - Updated: 5/5 - Published: 9/2/2020
Wrath of Steel by heavyneos reviews
Set between the episodes Within the Serpents Grasp and Serpents lair the Season 1 finale and the Season 2 premiere of SG1. A hyperspace malfunction sends a CIS fleet and its escort to another universe its commander a human from the earth that fell into the life of a Naboo noble family who thought he could change the outcome of the Clone Wars finds himself once again on an adventure
Crossover - Star Wars & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 8,377 - Reviews: 24 - Favs: 107 - Follows: 163 - Updated: 5/4 - Published: 3/3 - OC, S. Carter, J. O'Neill, Teal'c
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: 17 - Words: 112,948 - Reviews: 184 - Favs: 204 - Follows: 317 - Updated: 5/1 - Published: 10/6/2021
This Isn't Kansas 2: Homefront by andrewjameswilliams reviews
After two and a half years in another reality the Odyssey has returned home to find a galaxy in chaos and facing a greater threat than ever before.
Crossover - Stargate: SG-1 & Robotech/Macross - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 2 - Words: 9,741 - Reviews: 31 - Favs: 99 - Follows: 137 - Updated: 5/1 - Published: 1/2 - Braítac, S. Carter, Gen. Landry, L. Ferretti
Two Gates one to the Galaxy another to a different world by Director Kun reviews
A year before the Gate in Tokyo opened SG 1 explored the world of Special Region also known as P4X-942 in the Caesura Constellation that is outside the control of the Goa'uld. Little did they know they will return back to the world in a year due to an event that rocked Earth's nations.
Crossover - Stargate: SG-1 & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: T - English - Adventure - Chapters: 2 - Words: 3,253 - Reviews: 9 - Favs: 27 - Follows: 38 - Published: 5/1
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