OS: Windows XP Sp3, Windows Vista Sp2 Processor: 2.4 ghz multicore recommended Memory: 1.0 GB or more Graphics: 256 MB, Shader model 2.0, ATI 9600, NVidia 6600 or better, recommended Shader model 3.0 DirectX®: 9.0c Hard Drive: 3.5 GB Sound: DirectX 9.0c compatible soundcard