Very simple, yet fun concept :) Played until floor 102!
I see interesting potential here, but the generator requires to build levels with X floors in advance, to make sure you don't have "dead-ends" or forced deaths, and also to make sure that sometime, it's a good option to avoid some gold or to leave quickly a level. Random chests could also work well to ensure the player cannot always "read" the solution by just looking at the current level (ie. "should I take a risk by reaching this chest, but the reward isn't guaranteed").