Windows
OS: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 Processor: Intel Core 2 Duo E6600 @ 2.4 Ghz or AMD Athlon 64 X2 5000+ @2.6 Ghz Memory: 2 GB RAM Graphics: nVidia 8800 / ATi Radeon HD 3870 with 512MB or Laptop integrated Intel HD 3000 with 3GB system ram DirectX: Version 9.0c Network: Broadband Internet connection Hard Drive: 10 GB available space Sound Card: DirectX 9 Compatible Additional Notes: Open connection for online multiplayer. 1024x768 screen resolution.