Minimum: OS: x86 or x64 bit versions of Microsoft Windows XP/Vista/Win7 Processor: MD/Intel single or dual-core processor running at 2.2GHz (Intel Pentium D or AMD Athlon 64 x2 are probably the lowest CPU architectures recommended) Memory: 1024 MB RAM Graphics: ATI/nVidia graphic card with at least 256MB of dedicated VRAM and with at least DirectX 9.0c and Shader Model 3.0 support. ATI Radeon HD 3600 and NVIDIA Geforce 8600 are minimum required graphic cards. The game also works on the latest generation of Intel HD 3000 IGPs and AMD 6500 series IGPs but other previous generation IGPs are not supported. DirectX®: 9.0c Hard Drive: 300 MB HD space Sound: Integrated or dedicated DirectX 9 compatible soundcard. Additional: Memory stated above is for WinXP PCs, add 0.5GB to the above requirements if you are running WinVista/Win7 | Keyboard, XBOX360 Controller (optional) | The game also works on the latest generation of Intel HD 3000 IGPs and AMD 6500 series IGPs but other previous generation IGPs are not supported.