OS: Windows 7 64-Bit / Windows 8 64-Bit CPU: Intel® Core™ 2 Duo E8200 2.66 GHZ / AMD Phenom™ X3 8750 2.4 GHZ or better Recommended: Intel® Core™ i5 – 680 @ 3.6GHz RAM: 6 GB RAM Recommended: 8 GB RAM HDD: 40GB HD space Video: NVIDIA® GeForce™ GTX GTS 450 / ATI® Radeon™ HD 5870 or betterRecommended: NVIDIA® GeForce™ GTX 760 @ 4GB Sound: DirectX Compatible Sound Card DirectX: 11