Maps are read in your browser and never uploaded. Maps you load are kept in this browser so you
can play them again.
Your maps
Reading file
Settings
Controls click a key to change it
Esc: pause and settings
Browsers reserve some Ctrl shortcuts, so Ctrl+W can close the tab. While playing fullscreen,
Chrome and Edge hand those keys to the game. Other browsers ask before closing the tab, or crouch
with C. Mouse input is raw (no OS acceleration) where the browser allows it.