In addition to the revised specs, the studio also issued a few new screenshots of the user interface that Xbox 360 owners will find in the game. Both the PC and Xbox 360 versions of Left 4 Dead will arrive in stores on November 18.
- OS: Windows XP, Vista, Vista64
- 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 128 MB or more and should be a DirectX 9-compatible with support for pixel shader 2.0 (ATI 9600 or high. Or, Nvidia 6600 or higher)
- Sound: Direct X9.0c compatible sound card