About the Game:

Set in the immediate aftermath of the zombie apocalypse, L4D’s survival co-op mode lets you blast a path through the infected in four unique “movies,” guiding your survivors across the rooftops of an abandoned metropolis, through rural ghost towns and pitch-black forests in your quest to escape a devastated Ground Zero crawling with infected enemies. Each “movie” is comprised of five large maps, and can be played by one to four human players, with an emphasis on team-based strategy and objectives.

System Requirements:

Supported OS: Windows® 7 32/64-bit / Vista 32/64 / XP
Processor: Pentium 4 3.0GHz
Memory: 1 GB
Graphics: 128 MB, Shader model 2.0, ATI 9600, NVidia 6600 or better
Hard Drive: At least 7.5 GB of free space
Sound Card: DirectX 9.0c compatible sound card