Awesome concept and presentation, however I feel like it relies a little too much on randomness. Not being able to remove dungeon pieces was also kinda frustrating since I accidentally placed quite a few, though this may interfere with the timer.
I also feel like maybe the timer should have been extended a little after placing a main path because there was usually no time remaining to actually place tiles to get to other items in the level if they weren't already in my main path.
Also this seems to be a bug, but the game still kept count of the number floors I travelled after I died.
The music was great and didn't get old tbh. I also loved the art of the game. The game as a whole did have a very pleasant feel to it overall.