OS: Windows 7 (64-Bit) Processor: Intel Core 2 Duo 2 GHz or Equivalent CPU RAM: 8 GB Hard Drive: 5 GB available space Video Card: GeForce GTX 560 or Radeon HD 7790 or Equivalent card DirectX: Version 9.0c GRAV PC Game Free Download Full Version - 81GRAV PC Game Free Download Full Version - 21GRAV PC Game Free Download Full Version - 78GRAV PC Game Free Download Full Version - 82