Windows OS: Microsoft Windows XP SP3/ Windows 7 Processor: Intel Pentium 4 3.0 GHz, AMD Athlon 64 3500+ or equivalent processor Memory: 2 GB RAM Graphics: 256 MB DirectX 9.0c-compatible, NVIDIA GeForce 6600 or better, ATI Radeon X800 or better dedicated video card supporting Shaders Model 3 Storage: 3 GB available space