OS: Windows XP/Vista/7/8 Processor: Intel Pentium 4 @ 2.2 GHz / AMD Athlon XP 2500+ Memory: 1 Gb Hard Drive: 3 Gb free Video Memory: 128 Mb Video Card: nVidia GeForce FX 5900 / ATI Radeon 9800 Sound Card: DirectX Compatible Network: Broadband Internet Connection DirectX: 9.0c