I really liked this game! I can see a solid concept with plenty of room to grow. You could either turn this into a puzzle game by making the levels not random, or push it to more of a sim game by keeping it random and adding more systems to interact.
I wasn't sure how the hero was going to react, so some indication of what he's thinking would be nice. Maybe he has moods that means he's looking for certain things. A mood emote could pop up that basically says "Hey, I wanna kill a monster" or "I'm hurt, looking for health!"