OS: Windows XP/Vista/7 Processor: Intel Pentium 4 @ 1.5 GHz / AMD Athlon XP 1500+ Memory: 512 Mb Hard Drive: 1 GB free Video Memory: 128 Mb Video Card: nVidia GeForce FX 5500 / ATI Radeon 9500 Sound Card: DirectX Compatible DirectX: 9.0c Keyboard and Mouse