Wow, this is impressive! I love the low-poly visuals, and the game is really creative. A horror (roguelike?) is such a cool idea.
I just have a few notes. I played the game without headphones, so I might be wrong, but I don't think the enemies make any sound when they're walking toward the player. I think adding footsteps or some kind of audio cue would really help make the gameplay feel more dynamic and prevent players from taking damage just because they don't know where an enemy is coming from.
Also, I think a flashlight or even a minimap would be a nice addition. I personally don't enjoy the feeling of being completely lost.
Overall, great job! I really enjoyed it.