Minimum:

OS: Microsoft Windows Vista (Windows XP is unsupported)
Processor: Dual-core CPU with SSE3 (Athlon 64 X2 4200 / Pentium D 3GHz)
Memory: 2 GB
Graphics: Nvidia GeForce 8800 Series / ATI Radeon HD 2600 Pro with 256MB memory or equivalent DX10 card with 256MB memory
DirectX®: DirectX 10.0
Hard Drive: 10 GB of free memory space
Sound: DirectX 10 compatible sound card
Other: Keyboard, mouse (Microsoft Xbox360 controller optional)


Recommended:

OS: Windows 7
Processor: Intel Core® 2 Duo 2.6 GHz or AMD Phenom X3 2.4GHz or equivalent
Memory: 3 GB
Graphics: Nvidia GeForce GTS 250 Series with 512MB / ATI Radeon HD 5750 Series with 512MB or equivalent DX10 card with 512MB memory
DirectX®: Microsoft DirectX 10.1
Hard Drive: 10GB of free drive space
Other: Keyboard, mouse (Microsoft Xbox360 controller optional)