OS: Windows XP/Vista/7 Processor: Pentium 4 2.4 Ghz Single Core processor or equivalent (2.8 Ghz for Vista) RAM: 512 MB or more (1 GB for Vista) Hard Drive: 10.5 GB available space Video Card: DirectX 9.0c compatible Video card with 128 MB or more memory and one of the following chipsets is required: ATI x1300 or greater; NVIDIA 6600 or greater; DirectX 9.0c compatible card with Shader Model 3.0 support. DirectX: Version 9.0c