OS: Windows XP® or Windows Vista® Processor: Intel Pentium 4 3GHz or AMD Athlon 64 3000+ Memory: 256 MB RAM, 512 MB for Vista Hard Disk Space: 1.8GB free hard drive space Graphics: 128 MB with Shader Model 2.0 capability Sound Card: DirectX® 9.0c compliant sound card Controller Support: Xbox 360 controller