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Steam account required for game activation and installation Minimum System RequirementsOS: Win 7 SP1, Win 8.1 (64-bit Operating System Required)Processor: Intel Core i5-750, 2.67 GHz | AMD Phenom II X4 965, 3.4 GHzMemory: 6 GB RAMGraphics Card: NVIDIA GeForce GTX 660Graphics Memory: 2 GBDirectX®: 11Network: Broadband Internet Connectio...