Windows</br>OS: Microsoft® Windows® XP with SP2 / Vista / 7</br>Processor: Intel® Pentium™ 4 2.4 GHz or better</br>Memory: 512 MB RAM</br>Hard Disk Space: 250 MB</br>Video Card: Any OpenGL 2.0 graphics card with 256MB+ video RAM and full GLSL support</br>DirectX®: DirectX® 9.0c</br>Additional: One keyboard, controller, or mouse required per player. Supports multiple mice and/or keyboards. 3-buttons required for mouse play.</br>