OS: Windows XP/Vista/7 Processor: Intel Pentium 4 @ 2.8 GHz / AMD Athlon 64 3200+ Memory: 1.5 Gb Hard Drive: 3 Gb free Video Memory: 256 Mb Video Card: nVidia GeForce 8600 / ATI Radeon HD 2600 Sound Card: DirectX Compatible Network: Broadband Internet Connection DirectX: 9.0c