Compatibility and troubleshooting
Results vary by browser, operating system, game release, and DOS settings.
Recommended environment
- Current Chrome, Edge, or Safari
- WebAssembly, WebGL, AudioWorklet, and OPFS
- HTTPS and adequate storage
If a game does not start
- Check the start program and ZIP structure.
- Verify CUE/BIN or ISO paths for CD games.
- Try another core and Standard DOS region.
- Quit and prepare the launch again.
Audio
Tap the page to unlock audio. Check Bluetooth latency and the game's Sound Blaster, AdLib, CD Audio, or MIDI settings.
Saves and snapshots
First verify persistent in-game saves. Some games cannot fully restore snapshot video or audio.
Do not attach copyrighted game files to reports.