Die2Nite is a free co-op zombie game for your browser. "Your character gets dropped into a village with 40 other players from your time zone, and your group objective is to survive." They just announced open registration.
posted by Soup on Dec 7, 2010 - 36 comments

Skid MK is a fiendishly addictive and entertaining Mario Kart clone which has already taken up far too much of my week. Developers Conix Games also made a top-down zombie shooter in the Robotron tradition called Daytraders of the Dead, which is just about as addictive.
posted by Kattullus on Jul 23, 2010 - 8 comments

Everybody loves Zombies. Everybody loves killing Zombies. Nobody wants to suddenly wake up surrounded by Zombies. Not when you thought you were just playing a video game.
posted by Elmore on Feb 18, 2007 - 40 comments

ZOMBIEGRINDER! Only a fat man with a shotgun survives the zombie apocalypse in this Abuse-like game with a death metal soundtrack.
posted by boo_radley on Dec 9, 2005 - 22 comments

Urban Dead is a browser-based, grid-mapped multi-player game where you play the survivor or victim of a zombie outbreak in a quarantined city centre. Tired of playing a pseudo-hero in a fantasy Kingdom of Loathing? Play a scientist, soldier, or ordinary civilian in a modern city, and try to avoid being infected. Or skip the "avoid" phase, and just play a zombie.
posted by CrunchyFrog on Aug 1, 2005 - 33 comments