2.0 GHz Intel Pentium 4/AMD Sempron Processor, Windows XP/Vista/7, Dedicated graphics card (Nvidia GeForce 9500GT / AMD/ATI Radeon HD 4000 Series or better), 1 GB of RAM (2 GB for Vista/7), 200 MB free hard drive space, Broadband internet connection, Direct Input compatible mouse, DirectX 9.0c or higher.