Half-Life and Left 4 Dead Crossovers
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HLVR but the AI were Left 4 Dead by Livvylondinium reviews
a series of drabbles for an HLVRAI au, where they are in the world of Left 4 Dead. Will be compiled into a proper multi-chap eventually. (I'm sorry that I cannot find the hlvrai fandom, ill just have to post it here for now)
Rated: T - English - Adventure/Horror - Chapters: 7 - Words: 2,614 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 8/3/2020
Being Human by xX12Anonymous97Xx reviews
Gordon Freeman is sent to the world of Left 4 Dead to locate the reactivated Adrian Shepard. Then the unlikely soldier/scientist pair must attempt to fix not only their world, but the world of the infected as well...
Rated: T - English - Sci-Fi - Chapters: 12 - Words: 27,128 - Reviews: 31 - Favs: 34 - Follows: 36 - Updated: 8/21/2013 - Published: 2/29/2012 - Gordon F.
Necrosis by PointBlank2890 reviews
When another attempt to fuse Combine and Resistance teleportation technology goes awry, Dr. Freeman and his group are transported to the world of the infected. There, they must attempt an escape from the clutches of the infected. But they are not alone.
Rated: T - English - Horror/Adventure - Chapters: 4 - Words: 5,988 - Reviews: 10 - Favs: 10 - Follows: 14 - Updated: 2/21/2011 - Published: 12/30/2010
Bets Are Placed by MountFury reviews
Our favorite kick-ass gals have switched places! Will they survive, or will they be destroyed by the ravenous forces of their opposite's Universe? T for some swearing, gore, and pulse-pounding AWESOMENESS!
Rated: T - English - Horror/Friendship - Chapters: 4 - Words: 4,261 - Reviews: 19 - Favs: 6 - Follows: 9 - Updated: 9/1/2010 - Published: 6/15/2010 - Zoey - Complete
Left 4 Dead: The Crossover by Plankton 22 reviews
It's for you to find out! Disclaimer: I do not own the following characters and original ideas in the story. Valve Corporation owns them all. My first fanfiction ever. Enjoy. :
Rated: T - English - Parody - Chapters: 1 - Words: 477 - Reviews: 12 - Favs: 9 - Follows: 14 - Published: 2/20/2009 - Complete