Minimum requirements:
Operating System: Windows 7 64-bit
Processor: Intel I5-2500K, AMD FX-8120 - THE GAME NOW WORKS ON CPUs WITHOUT SSE 4.1 SUPPORT!
RAM: 6 GB
Video Card: 2GB of Video Memory & NVIDIA GeForce GTX 660, AMD Radeon HD7870
DirectX: 10
HDD Space: up to 53 GB