I think I finally managed to fix the audio issues some people were experiencing. The underlying cause was, along with bad mixing, things going in the wrong audio bus sometimes due to Godot defaulting to master if you forget to specify one (which I did). My thanks to all the people who reported the issue and Unagi for testing the fix. Also:

– fixed a name in the credits

– added an in-game sound debug overlay (type 'debug' to enable/disable), which should make diagnosing lingering issues easier

– changed the pre-existing debug screen (accessible via the title screen) to be activated by typing 'debug' as well for consistency

– made default volume 50 % on Windows

– fixed game window appearing in a weird place on Windows

Assuming the change fixes the sound issues, this should basically be it; I'm not aware of any other bugs. But let me know if you find one or have any other thoughts about the engine, which I will continue to develop while preparing for the launch of the main game.