Stargate: Atlantis Crossovers
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Mass Exodus by TimeTraveller-1900 reviews
A series of one-shots set in a parallel world, where the Alteran (Ancient) Amelius actually activated the Ark of Truth, and revealed the truth about the Ori, brainwashing the galaxy in turn. But what happens to the Alterans next, as they move towards their destiny?
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 1,575 - Reviews: 1 - Favs: 12 - Follows: 13 - Published: 7/26
The Other Side of Existence by Starry Bright Light reviews
Alex had settled into his life as an ex-reluctant spy. He went to the local university, kept up with his part-time job, and kept his head down. Unfortunately, that's not good enough for the bad guys still out in the world that want him dead. And after an encounter with a certain Colonel John Sheppard, Alex's perfectly settled, completely normal life is turned on its head.
Crossover - Stargate: Atlantis & Alex Rider - Rated: T - English - Sci-Fi/Adventure - Chapters: 35 - Words: 136,002 - Reviews: 50 - Favs: 57 - Follows: 58 - Updated: 7/25 - Published: 4/1/2022 - Rodney M., John S., Alex R./Cub
Gateway Public Library by Tanista2
Every great institution has a humble beginning. Two devoted bookworms with their teammates and friends take on the important task of establishing the first library on New Earth. Guest starring ami ven's SG-22. (Ad Astra 'verse, also crossover with MacGyver 1985)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K+ - English - Friendship - Chapters: 1 - Words: 5,487 - Favs: 1 - Published: 7/23 - J. O'Neill, OC, Rodney M., Radek Z. - Complete
Stargate Atlantis: Revan by Spearhead reviews
Fates and Destinies are changed when Revan, the greatest Master of both the Jedi and Sith Orders, is set on a new path by someone from his previous life. The Prodigal Knight and his small team will ally themselves with the Atlantis Expedition to fight the greatest threat known to a galaxy completely foreign to them. But that is only the beginning of the adventure.
Crossover - Stargate: Atlantis & Star Wars - Rated: M - English - Adventure/Sci-Fi - Chapters: 9 - Words: 29,148 - Reviews: 42 - Favs: 80 - Follows: 105 - Updated: 7/17 - Published: 11/1/2022
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: 21 - Favs: 11 - Follows: 15 - Updated: 7/3 - Published: 6/7 - S. Carter, D. Jackson, J. O'Neill, Gen. Landry
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
I'll Choose My Own Path by raspberry dreams reviews
Vernon and Petunia refuse to keep Harry, abandoning him with distant relatives. John embraces the idea of becoming a father to his abandoned cousin and takes him away to keep him safe. Is magic and Hogwarts going to be enough of an attraction to a boy who grew up on a seemingly almost sentient flying city in another galaxy.
Crossover - Harry Potter & Stargate: Atlantis - Rated: T - English - Family - Chapters: 36 - Words: 187,897 - Reviews: 418 - Favs: 537 - Follows: 593 - Updated: 6/30 - Published: 6/2 - [John S., Rodney M.] Harry P., Albus D. - Complete
When Magic and Technology work together by J.K Holdenwood reviews
Just a tryout of what a AI can generate in just 2000 words. Added a new chapter to learn the manager engine. Story gets a bit different as it went to other way i wanted. So ithink i have to make it small tryout single chapters for the time being.
Crossover - Harry Potter & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 3,391 - Reviews: 6 - Favs: 4 - Follows: 4 - Updated: 6/27 - Published: 1/14 - Harry P., Hermione G. - Complete
Dismanteling Destiny II: Reminiscence - The Old, New & Unexpected by ImaliFegen reviews
The Episode rewrite of Ties That Bind, The Powers That Be, Beachhead and Ex Dues Machina. (Full summary for the fic inside.)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 16 - Words: 64,897 - Reviews: 14 - Favs: 2 - Follows: 2 - Updated: 4/14 - Published: 3/6 - Complete
Dismantling Destiny I: Ends, Transitions & New Beginnings by ImaliFegen reviews
This is a time travel fix-it for SGA S5E19 -'Vegas' crossed over with Stargate SG1 S9 & S10. (See full summary inside.)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 20 - Words: 61,550 - Reviews: 18 - Favs: 8 - Follows: 9 - Updated: 2/25 - Published: 1/27 - C. Mitchell, John S. - Complete
Inter Astra by Zathara001 reviews
AU. Sequel to AD ASTRA PER MAGICAE. Part of Evil Author Day 2023. John and Harry make a discovery that changes the course of the Atlantis mission.
Crossover - Harry Potter & Stargate: Atlantis - Rated: K+ - English - Chapters: 1 - Words: 3,844 - Reviews: 24 - Favs: 127 - Follows: 138 - Published: 2/14 - Harry P., Hermione G., John S. - Complete
Reassignment and Other Really Wild Things (Expert Testimony 7ish) by Evil Asch reviews
Spin Off from the Expert Testimony series. Rodney has an idea, Sheppard has an objection, Carter has a headache, Jack has a fit and someone has an adventure.
Crossover - Highlander & Stargate: Atlantis - Rated: T - English - Angst/Adventure - Chapters: 39 - Words: 32,739 - Reviews: 1 - Favs: 5 - Follows: 21 - Updated: 2/13 - Published: 11/30/2013
Videum Anqietas (Odkaz Antiků) by Tom Nov reviews
Toto jsou události co se staly potom co Atlantis přistála na Zemi. Začátek tohoto příběhu se odehrává v budoucnosti, ale později se přesuneme do minulosti a nové alternativní reality. Ve které se bude odehrávat zbytek příběhu a podíváme se i do Multivesmíru. Zároveň se zde objeví žijící Antikové a jedna prastará civilizace.
Crossover - Stargate: Atlantis & Avengers - Rated: T - Czech - Sci-Fi - Chapters: 18 - Words: 93,041 - Reviews: 1 - Favs: 3 - Follows: 2 - Updated: 1/29 - Published: 8/29/2022 - Hermiod, Thor, Nick F., Agent Maria Hill
The Goa'uld of Beacon: New Pegasus Foothold by qelah22 reviews
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 - Reviews: 1 - Favs: 5 - Follows: 5 - Updated: 1/16 - Published: 8/17/2022 - OC, Rodney M., Teyla E., Ronon D. - Complete
Rodney's freakout by Bl4ckHunter reviews
One-shot story. Crack fic. Rodney plans to invite Jennifer to dinner, but a supply visit from Serenity brings him a freakout due to its mechanic.
Crossover - Firefly & Stargate: Atlantis - Rated: T - English - Humor - Chapters: 1 - Words: 2,482 - Reviews: 4 - Favs: 2 - Follows: 1 - Published: 1/5 - [Rodney M., Jennifer K.] Mal, Inara - Complete
first encounter by deanwstories reviews
In a desperate attempt to keep from hurting anyone else, Dean goes through with Death's plan to be sent far, far away. He thinks he'll be sitting somewhere alone, cursed for an eternity with the darkness but Dean couldn't be more wrong. (end of s10 for SPN and s1 of SGA)
Crossover - Stargate: Atlantis & Supernatural - Rated: T - English - Adventure/Fantasy - Chapters: 1 - Words: 1,640 - Reviews: 5 - Favs: 6 - Follows: 16 - Published: 12/11/2022
Of Gates and Huntsmen by LordDeadwing reviews
Earth is not the only world the Lanteans fled to following the Wraith victory in the war. Drake Rose, son of Summer Rose, and Qrow Branwen finds himself on Earth while trying to survive a Grimm attack, a decade later he joins the Atlantis Expedition as they begin an adventure that will change everything forever.
Crossover - Stargate: Atlantis & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 10,710 - Reviews: 4 - Favs: 12 - Follows: 11 - Updated: 12/4/2022 - Published: 11/30/2022 - Elizabeth W., Rodney M., OC
Harry Potter and the Seat of Avalon by LGreymark reviews
After the siege of Atlantis new recruits are brought by the Daedalus to Atlantis, among them a married British couple. Lt. Colonel John Sheppard isn't quite sure what to make of Lieutenant Harry and Dr. Hermione Potter, but their inclusion into the Expedition came from on high which can only mean bad things... Harry/Hermione main pairing. MANY secondary pairings.
Crossover - Harry Potter & Stargate: Atlantis - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 34,907 - Reviews: 79 - Favs: 564 - Follows: 840 - Updated: 12/3/2022 - Published: 10/17/2019
Said the Spider to the Fly by San Antonio Rose reviews
When the Machine gives its team the number of John Reese's old friend John Sheppard, neither man is prepared for the tangled web of hidden agendas and hidden identities they're about to uncover. The Trust has brought a Wraith to New York to sell to Elias. But not even they have as much control of the situation as they think.
Crossover - Stargate: Atlantis & Person of Interest - Rated: T - English - Adventure/Friendship - Chapters: 5 - Words: 24,555 - Reviews: 3 - Favs: 12 - Follows: 6 - Updated: 11/27/2022 - Published: 11/23/2022 - John S., Radek Z., J. Reese, H. Finch - Complete
A Way Home, Daedalus by TimeTraveller-1900 reviews
AU Seven of Nine comes up with a time travel drive that could fold time together, getting Voyager back home. But during the experiments, a rift is opened and a ship from a parallel universe arrives. The Daedalus is here. Nothing will be the same again.
Crossover - StarTrek: Voyager & Stargate: Atlantis - Rated: K - English - Sci-Fi - Chapters: 1 - Words: 7,983 - Reviews: 7 - Favs: 35 - Follows: 26 - Published: 11/18/2022 - K. Janeway, Seven of Nine, B. Torres - Complete
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: 43 - Words: 292,051 - Reviews: 139 - Favs: 37 - Follows: 53 - Updated: 11/15/2022 - Published: 3/4/2021
Battle of the three galaxies Apocalypse by c.jamous
the third installment of the series of movie , Apocalypse is a rich in events movie , will have many short chapters, hope you enjoy it . i advise you listen to the below music while reading it will help a lot " youtu . be /h3OpppJvbSs" remove the spaces to work
Crossover - Stargate: Atlantis & Avengers - Rated: K - English - Adventure/Sci-Fi - Chapters: 18 - Words: 15,366 - Favs: 1 - Follows: 2 - Updated: 11/1/2022 - Published: 3/10/2020 - Elizabeth W., David S./Sheppard, Dr. Strange/Stephen S., Carol Danvers/Captain Marvel
Stargate: Archangel, Pilot Episode by RogueTrace reviews
Jessica Martin encounters a Repository of the Ancients in the Colorado mountains, and begins her journey. This is the beginning of "Option 1" of the 5 that I've considered writing.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 2,788 - Reviews: 3 - Favs: 16 - Follows: 25 - Published: 10/11/2022
Stargate Atlantis: The Robotech War - Re-Upload by StrikeFreedom11 reviews
Two universe, completely independent from one another, will collide. How will the Atlantis Expedition thrive with one of the greatest warships and some of the bravest and greatest soldiers from another Earth aiding them with their conflict with the Wraith and other threats? Who knows, but it is going to be an amazing ride regardless. Welcome, to Stargate Atlantis: The Robotech War.
Crossover - Robotech/Macross & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 27 - Words: 237,740 - Reviews: 26 - Favs: 101 - Follows: 99 - Published: 10/1/2022 - Lisa/Misa, Rick/Hikaru, Gloval, John S.
Stargate Atlantis: The Robotech War by Strikefreedom10 reviews
Two universe, completely independent from one another, will collide. How will the Atlantis Expedition thrive with one of the greatest warships and some of the bravest and greatest soldiers from another Earth aiding them with their conflict with the Wraith and other threats? Who knows, but it is going to be an amazing ride regardless. Welcome, to Stargate Atlantis: The Robotech War.
Crossover - Robotech/Macross & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 161 - Reviews: 300 - Favs: 180 - Follows: 216 - Updated: 9/30/2022 - Published: 10/4/2018 - Lisa/Misa, Rick/Hikaru, Gloval, John S.
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