If the game starts in a small window, check the options menu to select your monitor's native resolution, made possible by the included community patches. System Requirements (Minimum) OS: Windows XP, 7, 8, 10, or 11. Processor: 1.2GHz or higher. Memory: 512 MB RAM. Graphics: Direct X 9.0c capable GPU. Storage: Approximately 300-500 MB of free space.