Yeah, it's ridiculously flexible as an engine, I definitely recommend it.
The spawn rate for the spooky invisible thing is like 4% per room, and it's usually tucked away near a ceiling or corner or something. Should have made it higher. Oh well!
Really appreciate the crash report! Turns out the fix is pretty simple, so I'll add a new build to fix that after voting ends.
Thanks for playing, and especially for putting up with 15 minutes of nothing :)