OS: Windows 7/8/8.1 (64-bit) Processor: Core 2 Duo E8200 2.66GHz or Phenom II X2 545 RAM: 3 GB Hard Drive: 60 GB available space Video Card: GeForce GTS 250 or Radeon HD 4830 DirectX: Version 10 Killing Floor 2 PC Game Free Download Full Version - 12Killing Floor 2 PC Game Free Download Full Version - 3Killing Floor 2 PC Game Free Download Full Version - 53Killing Floor 2 PC Game Free Download Full Version - 95