Simple concept, very straightforward. Feels surprisingly finished too. The dice doesn't really add much -- you roll a dice to do damage. Wpould be nice to have some more substance to it.
Could also have used some extra detail to the floor to make moving feel a little more dynamic. The first hallway especially I had to guess if I was moving.
Combat was fine, although a bit dull. roll, wait, roll, wait. Hope you do better than your opponent. Fight the next dice a few seconds later.