Left 4 Dead: Crash Course (2009)System Requirements:OS: Windows Vista, XP or 2000
CPU: 3.0 GHz P4, Dual Core 2.0 or AMD64X2 (or higher)
RAM: 1 GB for XP / 2GB for Vista
Disc drive: DVD-ROM Drive
Hard drive: At least 7.5 GB of free space
Video: Direct X 9 compatible video card (Video card must be 256 MB or more and should be a DirectX 9-compatible with support for pixel shader 2.0)
Sound: Direct X9.0c compatible sound card
