Buffy: The Vampire Slayer and Mass Effect Crossovers
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Judgement Effect by The Dullahan of Lore reviews
Having been cast into the ME-verse; Xander was 'saved' by a rogue scientist who took advantage of subconscious memories for the creation of A.I. Xander was transformed. he became...Skynet. YAHF!Xander. Rated M just in case at this point.
Rated: M - English - Sci-Fi/Drama - Chapters: 6 - Words: 18,995 - Reviews: 33 - Favs: 141 - Follows: 191 - Updated: 3/20 - Published: 12/20/2023 - Xander H., Benezia
Ship of The Line – Effect 31 by Knife Hand reviews
Bored with how things are going to play out, Janus interferes more directly in Halloween, making things more interesting and changing the course of the entire Galaxy. (Buffy/Star Trek/Mass Effect) - Chapter 13 up
Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 22,853 - Reviews: 143 - Favs: 562 - Follows: 758 - Updated: 7/23/2023 - Published: 10/16/2019 - Xander H., Buffy S., Willow R.
A Spectre in Sunnydale Final Version by andrewjameswilliams reviews
What if Xander had dressed up as a completely different kind of soldier on that fateful Halloween?
Rated: T - English - Adventure/Supernatural - Chapters: 1 - Words: 16,513 - Reviews: 11 - Favs: 88 - Follows: 73 - Published: 1/29/2023 - Complete
Phantom of the Air Ducts by Shootingstar7123 reviews
Human bodies drained of blood? Just another day on Omega for Archangel. (A little Shepard/Garrus and hints of Buffy/Spike.)
Rated: K+ - English - Mystery/Friendship - Chapters: 1 - Words: 3,059 - Reviews: 1 - Favs: 12 - Follows: 9 - Published: 11/4/2019 - Spike, Garrus V. - Complete
Slayer Effect by OpalSparrow
A series of one shots and short stories detailing the highs and lows of Slayers during the age of space exploration and colonisation. Into every generation a slayer is born, one girl in all the universe, a chosen one. Reviews Welcome!
Rated: T - English - Sci-Fi/Humor - Chapters: 8 - Words: 9,162 - Favs: 5 - Follows: 17 - Updated: 9/4/2018 - Published: 3/28/2015 - Illusive Man, O. Petrovsky
The Mass Effect of a Planetary Guardian by Tsiani reviews
Ethan Rayne wanted to create Chaos, but he had no idea how much his Halloween idea would create. No how long its effects would be felt for.
Rated: M - English - Chapters: 1 - Words: 1,839 - Reviews: 5 - Favs: 25 - Follows: 54 - Published: 7/17/2018 - Buffy S., Shepard
Zeppo Effect : Fight for the Lost by Dr Gonzo reviews
The Galaxy's Greatest Hero is back from the dead with a small army of the deadliest operatives in the galaxy to take on all comers. They say it's a suicide mission, that it's certain death. THEY keep forgetting that Shepard has a Zeppo in her corner.
Rated: M - English - Sci-Fi/Fantasy - Chapters: 82 - Words: 368,104 - Reviews: 330 - Favs: 441 - Follows: 464 - Updated: 4/27/2017 - Published: 1/16/2012 - Xander H., Shepard
The Slayer's Savior by CMiller13 reviews
What happened after the Crucible went off? Did Shepard survive? What would have happened if Faith had someone in her corner when the Finch incident went down?
Rated: T - English - Fantasy/Sci-Fi - Chapters: 3 - Words: 2,514 - Reviews: 8 - Favs: 25 - Follows: 42 - Updated: 12/24/2014 - Published: 3/10/2013 - [J. Garson, Miranda L.] Faith L.
Last Hope by CMiller13 reviews
While in her coma Faith is giving the chance to be what was denied to her by the other side. The PTBs have giving her one last chance as the Watchers set out to end her life on Earth. Warning may contain Femslash.
Rated: T - English - Supernatural/Sci-Fi - Chapters: 10 - Words: 12,663 - Reviews: 13 - Favs: 42 - Follows: 51 - Updated: 12/24/2014 - Published: 6/7/2011 - Faith L., J. Garson
Murphys Laws of Combat by Tjin reviews
What Happens when a bit of his Legendary luck rubs off on another Soldier? Xander Shepperd is about to find out. Because remember, Murphy doesn't choose sides.
Rated: T - English - Chapters: 2 - Words: 4,077 - Reviews: 9 - Favs: 66 - Follows: 81 - Updated: 9/9/2013 - Published: 6/9/2013 - Xander H.
For Lack Of A Sheet by Digimon Lantern 1 reviews
With no ghost costume available, another choice in costume causes a chain of events which reawakens a forgotten galaxy.
Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 21,238 - Reviews: 18 - Favs: 67 - Follows: 100 - Updated: 4/5/2013 - Published: 12/16/2012 - Willow R., J. Garson
A Spectre in Sunnydale by andrewjameswilliams reviews
What if Xander had dressed as another type of soldier during the events of Halloween? *discontinued*
Rated: K+ - English - Adventure/Supernatural - Chapters: 2 - Words: 10,069 - Reviews: 59 - Favs: 286 - Follows: 377 - Updated: 10/11/2012 - Published: 10/6/2012 - Xander H., Shepard - Complete
A Day In the Life of Alliance Marine Harris by Alex Mcpherson reviews
Mindoir, Elysium, Akuze, Torfan. Those were Easy. A day in the life of Marine Sniper Harris is a tough one, or so he tells Shepard.
Rated: T - English - Humor - Chapters: 2 - Words: 2,531 - Reviews: 6 - Favs: 54 - Follows: 54 - Published: 5/3/2012 - Xander H., J. Garson
The Zeppo Effect : A BTVS Mass Effect Tale by Dr Gonzo reviews
A series of one-shots and vignettes about our favorite White Knight's quest to show the galaxy's newest hero how battling extinction level apocalypse is done with style.
Rated: T - English - Sci-Fi/Fantasy - Chapters: 32 - Words: 96,930 - Reviews: 137 - Favs: 405 - Follows: 217 - Updated: 1/8/2012 - Published: 9/7/2011 - Xander H., Shepard - Complete