Windows
- OS:          Windows 7 or higher (32-bit, 64-bit)
- Processor:   Any CPU (x86, with SSE3 support)
- Memory:      512 MB RAM
- Graphics:    OpenGL 2.0 or higher (with FBO support)
- Sound:       ---
- Storage:     150 MB available space

Linux
- OS:          glibc 2.26 or higher (64-bit)
- Processor:   Any CPU (x86, with SSE3 support)
- Memory:      512 MB RAM
- Graphics:    OpenGL 2.0 or higher (with FBO support)
- Sound:       PipeWire, PulseAudio, ALSA
- Storage:     150 MB available space

macOS
- OS:          macOS 10.13 or higher (64-bit)
- Processor:   Apple Silicon (ARM), Intel (x86)
- Memory:      512 MB RAM
- Graphics:    OpenGL 2.0 or higher (with FBO support)
- Sound:       ---
- Storage:     150 MB available space

Steam Deck supported

DirectX 11 and 9 also supported on Windows for compatibility
(by starting the game with Eigengrau_windows_compat.bat)