I got lots of feedback from my test release and made some changes:

• Most importantly, I made some optimizations around my physics handling to improve memory performance.
• Turns out I had some hot paths that were doing inefficient stuff around displaying text, that's all fixed.
• The game should now makes a reasonable attempt to fit on a monitor.
• There's a loading screen that shows the game is doing something while it loads its assets; if you tried to run it and thought the game was frozen this might've been your issue.
• The Windows zip file shouldn't have that crazy depth it had on release day.
• I changed the keyboard defaults to the ever-so-slightly-better "C is for fire" instead of X. Our QWERTZ brethren can breathe a sigh of relief.

I'm still digging through performance issues and prioritizing feedback. Stay tuned!