Minimum: OS: Windows Vista 64-bit Processor: 2.0 Ghz or above Memory: 2 GB RAM Graphics: GPU that supports Shader Model 3.0 DirectX: Version 10 Hard Drive: 13 GB available space Recommended: OS: Windows 7 64-bit, Windows 8 Processor: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz(4 CPUs Memory: 8 GB RAM Graphics: NVIDIA GeForce GTS 450 DirectX: Version 11 Hard Drive: 13 GB available space