I think we had a similar idea going in for our games! So it's very interesting to see the different routes we went :)
I liked the moody atmosphere, it really scratched that classic dungeon crawler itch. The rooms mostly looked very similar, and the four directions made it very easy to get turned around (I accidentally wandered in circles for a couple minutes haha!) I think a small map in the corner, or adding small scenery pieces to the rooms, would've helped a lot in this regard!
Also one room up from the hallway that has a door on either side (right near the start) the game froze/crashed on me, not sure if this a system issue or a replicable bug!
Good job :)