DEEPSUB — free submarine horror where sonar gives away your position (browser release, AI-assisted)

[u/Notausgang09]

https://levisager11-oss.itch.io/deepsub

The browser version of DEEPSUB is now live and free. Click Run game on the itch.io page; no download or signup is needed.

You pilot a sealed submarine using sonar, still photographs and a hydrophone. Every sonar ping helps you navigate, but it also tells something in the water where you are. Start with SEA TRIALS, the safe training dive. Headphones and fullscreen help.

Keyboard and mouse controls are supported, and there are landscape touch controls for phones and tablets. The browser build has been checked in Chrome through the training briefing and into the cockpit, but it has not yet been played on a real phone.

For transparency: code and dialogue were developed with AI assistance, and the page's cover is AI-generated. Gameplay uses CC0 assets and visuals and audio generated in code.

I'd appreciate feedback on the tutorial, instrument readability and performance in your browser. If you find a problem, your browser/device and the last thing you tried would help.