OS: WinXP SP3 (32-bit only), Vista SP2, 7 Processor: Intel Pentium 4 3Ghz or greater Memory: 1 GB RAM Hard Disk Space: 2GB Video Card: 256 MB Video Memory with Shader 3.0 support; ATI Radeon X850XT / NVIDEA GeForce 7600GT DirectX®: DirectX 9.0c or greater Sound: 100% DirectX 9.0c compatible Audio Device