Minimum OS: Windows XP, Windows Vista or Windows 7 Processor: Intel Pentium Core 2 Duo 2.4 GHz or AMD Athlon X2 2.8GHz Memory: 2 GB RAM Graphics: Shader Model 3.0 graphics card with 256MB of memory, NVIDIA GeForce 7900GS or ATI Radeon 1900XT DirectX®: Hard Drive: 10GB of free hard drive space Sound: