I loved the core concept of this! It's a very satisfying dungeon crawling (or climbing, rather) experience. The inventory system is fantastic, and it's a great dopamine rush to check treasure chests for new loot.
My only minor gripe was that it was possible to load into a map where enemies blocked all early chests so there was no way to find a weapon to proceed. I also thought that combining the buttons to open a chest and view the inventory could help to streamline things a bit.
But other than that, I still had fun with this prototype!