OS: Windows 8, Windows 7, Windows Vista, Windows XP
Processor: Intel Core 2 Duo E6600 @ 2.40 GHz/AMD Phenom X3 8750 @ 2.4 Ghz
Memory: 2 GB RAM
Graphics: GeForce 8800 GT series with 512 MB RAM or ATI Radeon HD3870 with 512MB RAM
DirectX: Version 9.0c
Network: Broadband Internet connection
Hard Drive: 5 GB available space
Sound Card: DirectXR 9.0c or later Compatible Card
Additional Notes: Internet connection for Steam activation and multiplayer functionality.