I really enjoyed this demo! However, I don't really understand how the blocking/defense mechanism works. That confused me most of the time during playtime.
This game really reminded me of the time when I was playing Grimrock, it really took me back.
At first I was surprised to encounter enemies without seeing them in front of me, but I quickly got used to it. Not so much with the NPCs, I would have preferred to actually see them in front of me, when exploring.