Minimum System Requirements OS: Windows XP/Vista Processor: Pentium D @ 2.6 GHz/AMD Athlon 64 X2 3800+ Memory: 1 GB on XP/2 GB on Vista Hard Drive: 8 GB Free Video Memory: 256 MB (Shader Model 3.0) Sound Card: DirectX Compatible DirectX: 9.0c or 10 Keyboard & Mouse