Stargate: SG-1 Crossovers
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Sleeping Dragons Will Awake by KnneKnight reviews
Sometimes people, or governments ignore agreements. Often if it is an honest mistake a simple reminder is necessary. One might even need to use the courts. His experiences have shown that waiting for outside assistance is futile. Hermione is missing and Harry is moving forward on his own accord. Updates very slow. All time of Universes al altered.
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Adventure - Chapters: 10 - Words: 32,545 - Reviews: 92 - Favs: 453 - Follows: 690 - Updated: 1/27 - Published: 9/7/2020
The Fifth-Race Reclaimers: Upheaval by Piero217 reviews
Over the course of eight months following their triumph over the Precursor threat, the Fifth-Race Reclaimers have been working hard to learn more about each other and their respective galaxies—sometimes without the other side even knowing. But with a new threat looming on the horizon, will they be prepared to defend every living creature they have been entrusted with?
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 2 - Words: 3,799 - Reviews: 8 - Favs: 57 - Follows: 86 - Updated: 1/23 - Published: 6/8/2019 - S. Carter, D. Jackson, Teal'c, Arbiter
Protective Custody by Virodeil reviews
The Prime Minister of the mundane world was more proactive about the threat of Sirius Black in 1993. She contacted an ally to help with one part of the problem, namely the safety of a thirteen-year-old boy who was said to be the criminal's foremost target. The ally secreted him somewhere special… and things snowballed from there.
Crossover - Stargate: SG-1 & Harry Potter - Rated: K - English - Hurt/Comfort/Family - Chapters: 5 - Words: 6,902 - Reviews: 37 - Favs: 219 - Follows: 430 - Updated: 1/17 - Published: 11/4/2020 - Gen. Hammond, OC, Harry P.
The Ultimate form of Green Energy by ConlonKeith reviews
The Ancient Technology ideas for this story and the Rise of the Goa'leks ch. 2 you can find in Jonathan Gray's book Dead Man's secrets and so I don't own the technological idea simply using them in my stories.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: K - English - Sci-Fi - Chapters: 2 - Words: 1,348 - Reviews: 1 - Favs: 3 - Follows: 1 - Updated: 1/15 - Published: 11/27/2017
The mysterious Doctor Who and Time Lords (Prequel to Stargate Command' by ConlonKeith reviews
This story is a Prequel to Stargate Command's and UNIT's shared Allie and the Rise of the Goa'leks parts 1 and 2.
Crossover - Doctor Who & Stargate: SG-1 - Rated: K - English - Sci-Fi - Chapters: 13 - Words: 13,593 - Reviews: 2 - Follows: 1 - Updated: 1/15 - Published: 12/6/2017
Alternative Enderverse (Shadow of the Hegemon) by ConlonKeith reviews
I thought that this would be a better alternative Enderverse (Shadow of the Hegemon) backbone story line than the established one if any one wants to they can use it for story line idea.
Crossover - Stargate: SG-1 & Ender's Game series - Rated: K - English - Sci-Fi - Chapters: 2 - Words: 494 - Reviews: 1 - Updated: 1/15 - Published: 2/5/2018 - Complete
The Perfect Host by Otspock reviews
HPSG1 Crossover When going to blow up a Gua'uld ship, SG1 finds an extroadinary boy with remarkable talents being kept prisinor
Crossover - Harry Potter & Stargate: SG-1 - Rated: K+ - English - Chapters: 3 - Words: 2,713 - Reviews: 102 - Favs: 370 - Follows: 677 - Updated: 1/15 - Published: 9/8/2007 - J. O'Neill, Harry P.
Two Become One by Sonnie W
What happens when a sibling across the other side of the world gets sick? What will happen when a case goes horribly wrong? The consequences are great for some and traumatic of others.
Crossover - Stargate: SG-1 & Stingers - Rated: M - English - Hurt/Comfort/Sci-Fi - Chapters: 10 - Words: 37,320 - Favs: 1 - Updated: 1/11 - Published: 11/4/2012 - Complete
Too Many Pregnancies by ReKoJ reviews
It all started with Evan Lorne. How many more lives will be changed? Disclaimer: Just a little bit of a warning, this deals with Mpreg (male pregnancy), if this isn't your cup of tea, then don't read. I will say that the way that the men end up pregnant will be explained, it doesn't just happen.
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: M - English - Chapters: 10 - Words: 9,130 - Reviews: 6 - Favs: 3 - Follows: 2 - Updated: 1/5 - Published: 8/17/2020 - C. Mitchell, John S., Ronon D., E. Lorne
Tau'ri's Shadow by lizardsocks
Teal'c has heard the Jaffa tell stories of an unusual holographic enemy, but he never thought he'd encounter one in the halls of the SGC. (Check AO3 for additional notes)
Crossover - Stargate: SG-1 & Steven Universe - Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 5,901 - Favs: 3 - Follows: 1 - Published: 1/2 - Teal'c, Amethyst - Complete
A New Tournament by killgore444 reviews
A gift from the future provides a little bit of hope in a time of need. OP Harry, Ron and Hermione, but with a plausible background to support it. No bashing, even of disliked characters.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Chapters: 6 - Words: 49,233 - Reviews: 97 - Favs: 253 - Follows: 416 - Updated: 12/31/2020 - Published: 4/12/2020
Shards of Glass Part III by Mini Goat reviews
Jack beat the charges and George pulled pretty hard on some strings to make things right but SG-1 has one final task to undertake before anyone can have happily ever after.
Crossover - Stargate: SG-1 & NCIS - Rated: T - English - Crime/Adventure - Chapters: 16 - Words: 37,741 - Reviews: 80 - Favs: 19 - Follows: 12 - Updated: 12/21/2020 - Published: 11/19/2020 - [S. Carter, J. O'Neill] D. Jackson, Leroy Jethro Gibbs - Complete
It's Christmas after all by Amfor reviews
It's the first Christmas of Sam being a leader of Atlantis. She feels that something is missing for her to be truly happy. Will an unexpected gift bring her joy?
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Romance - Chapters: 1 - Words: 2,648 - Reviews: 2 - Favs: 6 - Follows: 2 - Published: 12/19/2020 - Complete
Second Chances by SGphan reviews
When the sliders end up sliding into SGC, it does not take long to realize the can help each other.
Crossover - Stargate: SG-1 & Sliders - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,636 - Reviews: 4 - Favs: 6 - Follows: 18 - Published: 12/9/2020 - S. Carter
In Fire Forged (StargateHalonBSG fusion) by Illuviar reviews
The Supreme System Lord Ra has been missing for a year, the System Lords are straining their bonds, at a perilous time. The alien Covenant has proclaimed the Goa'uld and their servants, as False Gods and Heretics to be exterminated. Meanwhile, the beleagued UNSC struggles for survival, while the 12 Colonies of Kobol are none the wiser about the dangers lurking in the dark...
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 21,458 - Reviews: 23 - Favs: 86 - Follows: 115 - Updated: 12/9/2020 - Published: 10/23/2020
one CyberEntity by Typical.Story.Teller reviews
A consciousness from our world somehow transported into artificial intelligence core in another (but very familiar) reality that faces final stages of the Reapers's invasion. A hope will come from the most unlikely place. A little bit AU. Self-Insert. Robots. StarGate, MassEffect, maybe something else...
Crossover - Stargate: SG-1 & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 2,444 - Reviews: 9 - Favs: 63 - Follows: 81 - Updated: 11/30/2020 - Published: 9/25/2020
Stargate Awakening by IceBite reviews
During the final battle with Grima, Robin is abducted by the Goa'uld Metis. Metis tried making Robin its host, but failed. Now, backed up with Goa'uld technology, and with Grima and Metis defeated, Robin and the others now work to stop the Goa'uld. What will SGC think of working with Robin…and how will the Goa'uld handle the newly-created System Lord Grima?
Crossover - Stargate: SG-1 & Fire Emblem - Rated: M - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 4,295 - Reviews: 9 - Favs: 11 - Follows: 19 - Updated: 11/23/2020 - Published: 10/9/2014 - [Chrom, Avatar/Robin] D. Jackson, Morgan
A new System Lord? by Dragons123d reviews
The Birth of the Goa'uld Queen, Venus, during the time after the Tau'ri and other races defeated the Goa'uld Empire, sparks something that no one expected. Venus would find herself, through some unknown means, sent to an alternate reality where the Tau'ri never found the Stargate and they know nothing of the universe. Her host, the abused teenage daughter of Lily and James Potter..
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Sci-Fi/Supernatural - Chapters: 20 - Words: 23,837 - Reviews: 37 - Favs: 264 - Follows: 330 - Updated: 11/17/2020 - Published: 10/19/2020 - [Sha're, Harry P.] Ba'al, OC
EVoNet by Outlaw Realms reviews
Discontinued for an improved version with chronologically ordered chapters, and called: "EvoNet Forward". Please go and read that version. It has improved chapters with a few extra concepts placed in along with extra chapters. Thank you.
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Sci-Fi/Fantasy - Chapters: 16 - Words: 83,894 - Reviews: 607 - Favs: 2,190 - Follows: 2,458 - Updated: 11/17/2020 - Published: 6/18/2012 - [Harry P., Daphne G.] [Astoria G., Draco M.] - Complete
Harry Potter and the Stargate Adventure by EtheSlytherinLion reviews
Harry Potter and his 3 wives have decided that they needed to move on to the Next Great Adventure and end up on a new planet. Soon they come in contact with a team of explorers, it happens to be SG-1 and the world will never be the same.
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 2,073 - Reviews: 22 - Favs: 162 - Follows: 298 - Published: 11/16/2020
Shards of Glass Part II by Mini Goat reviews
SG-1 is home and safe but their troubles are only beginning. General Bauer was waiting for them. Jack is under arrest and Sam struggles to wrap her mind around why Jack is pushing her away again.
Crossover - JAG & Stargate: SG-1 - Rated: T - English - Crime/Romance - Chapters: 12 - Words: 23,553 - Reviews: 49 - Favs: 17 - Follows: 20 - Updated: 11/15/2020 - Published: 10/19/2020 - [S. Carter, J. O'Neill] H. Rabb, Gen. Hammond - Complete
Empires Unite! Milky Way by SapphireDawn11709 reviews
When the SGC Destroys the Quantum Mirror after the incident were Doctor Carter and Major Kawasaki appear in Area 51a ripple was sent across the multiverse. When this ripple hit a Forerunner portal chaos ensues as fleets from three universe appear in the Milky Way. Starship Troopers, Mass Effect, Halo Stargate
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 7,929 - Reviews: 14 - Favs: 96 - Follows: 136 - Updated: 11/14/2020 - Published: 6/24/2019 - T. Lasky, S. Carter
Space Wizards Book 1 : The dawn of the DSF by yoden reviews
A sequel to Esama's "Wizards IN SPACE". As the crew of an alien spaceship, Harry and the DA must make their own place in a world torn by war. Between discovering the secrets of alien tech, creating their own, fighting for survival and building up an international organization, they are up for an interesting year.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 5,516 - Reviews: 20 - Favs: 81 - Follows: 148 - Published: 11/11/2020
Return of the Alterans by SSG-Goku3397 reviews
At the tender age of five, Harry has a bout of incredible accidental magic drawing the attention of the Ascended Alterans. Though the Ascended don't intervene, they decide to bend the rule by allowing Janus and Ganos Lal to raise Harry until the age of nine before sending him and his guardians to the Tartarus City Ship to continue his life and try to bring back the Alterans!
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 8 - Words: 65,733 - Reviews: 371 - Favs: 1,527 - Follows: 2,011 - Updated: 11/9/2020 - Published: 5/26/2019 - [Harry P., OC]
A Godly bounty by MissValteria reviews
Events between Voldemort and Dumbledore played out differently in the ministry as Harry intervenes in an attempt to help. A brave act that has far-reaching consequences. Now linked to a family living under Goa'uld Tyranny Harry must find out how to help them if he even can.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 3,755 - Reviews: 18 - Favs: 93 - Follows: 153 - Updated: 11/8/2020 - Published: 7/13/2020 - OC, Harry P.
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