Left 4 Dead is a 2008 multiplayer survival horror game developed by Valve South and published by Valve.
Here are the Left 4 Dead System Requirements (Minimum) CPU: Pentium 4 3.0GHz CPU SPEED: Pentium 4 3.0GHz RAM: 1 GB OS: Windows 7 32/64-bit / Vista 32/64 / XP VIDEO CARD: 128 MB, Shader model 2.0, ATI 9600, NVidia 6600 or better TOTAL VIDEO RAM: 128 MB 3D: Yes HARDWARE T&L: Yes PIXEL SHADER: 2.0 VERTEX SHADER: 2.0 SOUND CARD: Yes FREE DISK SPACE: 7.5 GB Left 4 Dead Recommended Requirements CPU: Intel Core 2 Duo 2.4GHz CPU SPEED: Intel Core 2 Duo 2.4GHz RAM: 1 GB OS: Windows 7 32/64-bit / Vista 32/64 / XP VIDEO CARD: Shader model 3.0, NVidia 7600, ATI X1600 or better TOTAL VIDEO RAM: 128 MB 3D: Yes HARDWARE T&L: Yes PIXEL SHADER: 3.0 VERTEX SHADER: 3.0 SOUND CARD: Yes FREE DISK SPACE: 7.5 GB