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Stargate • 1640 stories • Updated 13 Apr

What if Willow's spell didn't just activate the slayers on this planet? When the goa'uld took their slaves to seed the galaxy, were humans all they took? Could Andrew enter the SGC without hypervenilating to death? The answers lie within our selection of Stargate crossover fanfics.

Join the Scoobies as they go through the Stargate with Jack, Sam, Daniel & Teal'c, or head further afield to the city of Atlantis.

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The day after Graduation, Xander leaves and joins the Air-Force. Later on, SG-1 along with a newbie Xander are deployed to investigate a possible foothold situation in Sunnydale.

Key Plots Elements;
-Must Be Anytime From Season 4 Onward
-Xander Progressed Through Basic And Spec Ops Training Quickly Due To Soldier Boys' Memories
-Xander Tries To Keep The Team From The Nightlife Making Them Suspicious Of Him
-Xander is Spotted By One Of The Scoobies Who Haven't Seen Him Since The Graduation Battle
Stargate > Xander-Centered > Theme: Soldier Xander • rosson • Responses [0] • Date Added [24 Feb 14]
Back story: All three are moved from their reality by The Powers That Be to the Stargate reality. As they appear their Whistler appears and say. "You three are brought to this reality so that you can't mess up The Powers That Be's plans even more so with the side effects of the chaos magic. Their is no way to get back to your home reality from here The powers made sure of that. You can do what you want here the Powers don't kair because this reality was going to die. Thoe with you three it might change the future of this reality. Either way you are trapped here for the rest of your lives so ma...
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Stargate > Xander-Centered > Theme: Halloween Memories • removedauthor • Responses [0] • Date Added [22 Oct 13] • Date Updated [23 Oct 13]
Back story: All three are moved from their reality by The Powers That Be to the Stargate reality. As they appear their Whistler appears and say. "You three are brought to this reality so that you can't mess up The Powers That Be's plans even more so with the side effects of the chaos magic. Their is no way to get back to your home reality from here The powers made sure of that. You can do what you want here the Powers don't kair because this reality was going to die. Thoe with you three it might change the future of this reality. Either way you are trapped here for the rest of your lives so ma...
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Stargate > Xander-Centered • removedauthor • Responses [0] • Date Added [20 Oct 13] • Date Updated [22 Oct 13]
Back story: Xander convinces the gang to go as the characters from Xander and Willow's favorite show.
Plot points:-Buffy dresses up as Samantha Carter
-Xander dressed up as Jonathan J. O'Neill
-Willow dressed as Adria (Your choice on weather Willow has any kind of romantic relationship with Joyce.)
-Jenny dressed as Vala Mal Doran (Your choice on weather she and Joyce have any kind of romantic relationship.)
-Joyce dressed as a female Dr. Daniel Jackson. (Of Daniel being a women throughout the whole series.)
-OZ dressed as Teal'c
-Giles dressed as Bra'tac
-Each ...
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Stargate • removedauthor • Responses [0] • Date Added [10 Oct 13]
Back story: All three are moved from their reality by The Powers That Be to the Stargate reality. As they appear their Whistler appears and say. "You three are brought to this reality so that you can't mess up The Powers That Be's plans even more so with the side effects of the chaos magic. Their is no way to get back to your home reality from here The powers made sure of that. You can do what you want here the Powers don't kair because this reality was going to die. Thoe with you three it might change the future of this reality. Either way you are trapped here for the rest of your lives so ma...
(more)
Stargate • removedauthor • Responses [0] • Date Added [9 Oct 13] • Date Updated [20 Oct 13]
This a incarnation Challenge: Rules:#1: Xander and Willow get reincarnated as symbiotes eather before Egeria, the Tok'ra Queen's time (5,000 years ago) or before that.

#2:Xander and Willow will get the genetic memory of the Goa'uld just with out the personalities and emotions that go with them.

#3:Xander and Willow will be in complete control of the bodies their symbiotes take over and they will be at the same place when they take a host for the first time.

#4:Xander and Willow will share a mental connection/link with each other.

#5:Xander and willow will b...
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Stargate • removedauthor • Responses [0] • Date Added [5 Oct 13] • Date Updated [15 Oct 13]
Back story: During the episode "Helpless" while Xander and Buffy are on a school field-trip for geology class they go into a cave but run into a monster. They beat it up and run with Xander carrying Buffy. Because both him and her got injured during the fight. Buffy out-cold, what looks like a broken arm and leg and a head wound. While Xander has a sprained or broken wrist and a cut up arm that's bleeding. As Xander carries Buffy away from the monster he falls through a whole that was hidden in a shadow on the floor. When Xander wakes up he finds he and Buffy are at the bottom of a tunnel so d...
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Stargate > Xander-Centered > Theme: Halloween Memories • removedauthor • Responses [0] • Date Added [27 Sep 13] • Date Updated [10 Oct 13]
Back Story: At some point after the episode Graduation Day, Part Two (be it right after or not it's up to you) Xander leaves Sunny-Dale (be it temporary or just on a vacation away from the Hellmouth) he runs across the cult of Seth (SG-1 Season 3, episode 2). And falls under Seth's drug. Be it later or soon after Seth treys to take Xander's body as a host but for some reason or another Xander becomes the domant and Seth the slave with Xander getting all the perks and none of the down sides of being a host.

Now here are the rules:
#1:Xander has to to meet the cult before the time S...
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Stargate > Xander-Centered • removedauthor • Responses [0] • Date Added [26 Sep 13]
This is a two part challenge each part could be it's own challenge or you can do both parts. Part #1:During the Halloween episode on Buffy the Vampire slayer people became their costume. So here is my challenge: What would happen if the costume they dressed as was real in a different reality/dimension and the mind of the costume went back home but sooner than they left with all of their memories from thier mind in the futcure?:

Challenge Rules:

Part#2:

Willow dressed as Samantha Carter

Xander dressed as Jonathan J. O'Neill

When the spell ended both ...
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Stargate • removedauthor • Responses [0] • Date Added [24 Sep 13] • Date Updated [10 Oct 13]
This is mainly a buffy Stargate cross over. The plot for this is xander is somehow sent to the Stargate verse and when he arrives he is captured by ra's Jaffa to be implanted after impressing Ra somehow. Now this just makes him a candidate for being implanted so they take him to a room with other people that could be chosen. However after being chosen and because of some magic protection instead of being taken over cancer basically gets all the good things but becomes amoral leaning toward good. So when ra decides to kill the people not chosen xander asks for them. When ra asks why cancer tell...
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Stargate • danny • Responses [0] • Date Added [22 Sep 13]
I had a story idea for a self-insert that I think might work well as YAHF. What if Xander (or Buffy or Willow, though I'm hoping Xander) dressed as a goa'uld for Halloween, and when the spell ended Xander was left not as a human, but as the actual goa'uld symbiote?

I'm assuming he would have the memories (genetic and otherwise) and knowledge of whichever goa'uld he dressed as, and likely that he'd be a bit of a power-hungry megalomaniac. I have no recommendations for who's body he could take over, mainly because I don't really expect that person to be a character, I expect Xander to...
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Stargate • OdinMage • Responses [0] • Date Added [20 Aug 13]
I have read quite a few Buffy/Stargate crossovers where the SG-1 is out of their depth because they investigate Sunnydale and find out that the magic and other supernatural myths are real. I would like to see the revelation turned around, and have SG-1 be the experts explaining what is really going on to the Scoobies.

Must have:
The Hellmouth is in reality a Stargate.
Sunnydale is not a supernatural hot spot, but is instead a Goa'uld foothold.

Bonus points if:
There is no supernatural, all "magic" really is just the application of advanced technology.
...
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Stargate • BrandonYoung • Responses [0] • Date Added [18 Aug 13]
Your challenge, which I pray you accept, is simple.

Buffy doesn't die when she jumps from Glory's tower. Instead she is transported to the SGC only there's a problem, Her mind is turned into swiss cheese not dissimilar to Dr. Sam Beckett's. Difference is she's not gonna jump again and again. How would a semi feral slayer fare in the SGC?
Stargate > Buffy-Centered • Selonianth • Responses [0] • Date Added [30 Jul 13]
Two clans of warring demons kidnap Dawn and Daniel to serve as interpreters for peace talks. (Each clan kidnaps one)

Dawn and Daniel become friends during the LONGGGGG talks, and when the treaty is finished negotiating, sexual coitus (possibly even a child) is required to seal the deal. As the clans are anatomically incompatible, it falls to Dawn and Daniel to seal it.....
Stargate > Dawn-Centered > Pairing: Daniel Jackson • TroyGuffey • Responses [0] • Date Added [28 Jul 13]
Giles' texts indicate that vampires were made by the blood of the last pure blood demon mingling with that of a human, before leaving this dimension.

We know that Anubis had a tendency towards genetic experimentation, such as creating Khalek. Make it so his first attempt resulted in vampires.

He must do this when he was an ascended Goa'uld, before being pushed down half way by the Ancients. They were to be his army.

That's the general idea. Below are some plot ideas, but feel free to go your own way.

Things is like to see:
Anubis raising an army of vampi...
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Stargate • Tir • Responses [0] • Date Added [8 Jul 13]
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