Windows</br>Minimum 3D hardware accelerator card required – 100% DirectX(R) 9.0c-compliant 32 MB Hardware T&L – capable video card and the latest drivers*, English version of Microsoft(R) Windows(R) 2000/XP, Pentium(R) III 1.8 GHz or Athlon(TM) XP 1800+ or higher processor, 256 MB of RAM, 2.8 GB of uncompressed hard disk space (plus 320 MB for the Windows swap file), A 100% Windows 2000/XP-compatible computer system including:</br>DirectX 9.0c (Included)</br>100% DirectX 9.0c-compliant true 16-bit sound card and drivers</br>100% Windows 2000/XP-compatible mouse, keyboard and drivers</br>100% Windows 2000/XP-compatible gamepad (optional) (Game controller with 10 or more buttons and dual analog thumb sticks required)</br>*Supported Chipsets for Windows 2000/XP</br>NVIDIA® GeForce™ 3/Ti series</br>NVIDIA® GeForce™ 4/Ti series</br>NVIDIA® GeForce™ FX 5700 and later series</br>NVIDIA® GeForce™ 6800 and later</br>ATI® Radeon™ 8500</br>ATI® Radeon™ 9000</br>ATI® Radeon™ 9600</br>ATI® Radeon™ 9800 and later</br>*Important Note: Some 3D accelerator cards with the chipsets listed here may not be compatible with the 3D acceleration features utilized by GUN. Please refer to your hardware manufacturer for 100% DirectX 9.0c compatibility.</br>