Ironically, the VISION of this game is so clear. I can tell exactly what you were going for, and you nailed it! I love the horror dungeon crawl vibe with the ominous droning sound constantly playing. The first few floors really got me spooked. Screw those little shadow spiders!
That being said, the enemies were pretty simple, so after that they lost their scare factor. I think the enemies all acting exactly the same with varying health and speed, as well as the fact they move towards you from the start, makes them feel less like a threat and more like wax health that you got delivered for free. While I haven't finished the game (I stopped at floor 22), the floors got a bit repetitive for how many you're expected to complete. The fact you can save and quit later does remedy that though. It's really fun doing the little minigames with a timer in the background, and the variety of them is super impressive! The ascending beeps as you complete them is great! I might come back later to see how hard they get.
My last gripe is the map. While it's really nice to be able to go fast with there being 50 floors, I think not having it and there being less floors (maybe each area is 5 floors instead of 10?) would make it much more immersive, especially because there is already a compass/hot-cold system. Fine tuning it so the torches actually light up the map to see would also make those very useful I think. They already don't help much with the enemies.
Anyway that's a lot of critique because I'm a big fan. It's just a lot of balancing and number tweaks I think, which is the best place to be! Overall, super impressed. Great work!
TL;DR
Like: audio, visuals, horror atmosphere, puzzle variety, theme
Dislike: length, lack of enemy types, map