I really enjoyed this. I like it's dark vibe and simplicity.
On linux version however after pressing "PLAY" nothing happens. The console throws some errors indicating that some resources were not found.
Running this game via wine works fine but the game seems to be resource heavy.
It has great replayability potential because of the procedural rooms being generated and that's why I come back to this occasionally.
If you did it yourself as your first 3D game project then congratulations on your persistence :D