Operating system:Windows® XP Service Pack 3, Vista, or 7 Processor: Intel® Pentium® IV 3.0 GHz (or AMD equivalent) Memory: 1GB RAM on Windows XP, 2GB of RAM on Windows Vista/7 Hard disk space: 1GB Hard disk space Video: nVidia or AMD/ATI video card with 128MB RAM and Shader Model 3 support (GeForce 6000 series or ATI HD2000 series) Sound: DirectX-compatible sound card DirectX®: DirectX® 9.0c Internet: High Speed Internet (DSL or better) required