OS: Windows Vista (both 32 and 64bit versions) Processor: Intel Core2Duo E7300 @ 2.5 GHz or AMD Athlon II X2 240 @ 2.8 GHz Memory: 2 GB Hard Drive: 2 GB Free Video Memory: nVidia GeForce GTS 450 or AMD Radeon HD5670 (1024MB VRAM) Sound Card: DirectX Compatible DirectX: 10 Keyboard & Mouse