OS: Windows XP/Vista/7 Processor: Intel 3.0 GHz or AMD 2.5 GHz or higher Memory: 1 GB (XP), 2 GB (Vista) Graphics: Nvidia 7800 / ATI X1800 or better (Shader Model 3.0, 512 MB Video Memory) DirectX®: 9.0c Sound: DirectX 9.0c Compatible Sound Card Controller Support: Xbox 360 Controller