Something threw and the frame loop halted. This is a bug, not something
you did. Copying the report below and sending it on is the single most
useful thing you can do with it.
WASD or arrows move
CLICK a tile to walk there, a station to use it
I pack
E gear
M map
SPACE attack
SHIFT block
1-6 abilities
Q drink
R recall
ESCAPE closes a window
F fullscreen