The first impression this game gives is amazing. Everything looks so polished and beautiful. The atmosphere is really great. From your profile, it looks like this is your first Itch.io submission, which is very surprising.
I am getting some pretty bad vsync issues, and I have a fairly beefy PC. I wonder if your postprocessing is not synchronized with the framerate.
I can't figure out how to get the first key. Attacking does not appear to work, I pressed just about every key on my keyboard and I can't use the crowbar.