I see there was a stealth update that has made the game SIGNIFICANTLY harder and I must express my extreme and complete frustration with it now. Roll it back. That or I just completely suck ASS and the game's always been too easy before, but I was at least able to reach the boss twice previously and regularly get to the 15th+ floors. Never beat the boss, got close once, but now? Forget it. And I've played this dozens and dozens, probably in the hundreds, I never counted, of times. It's beyond frustrating now and I won't be playing it anymore. Can't even get to floor 10 regularly without getting easily wiped out by big groups of mobs.
Very fun game, though, at least it used to be, that could make real money, especially if the difficulty scaling were better and there were mechanics for increasing the energy pool at some point and more robust and specific dice upgrades.
Just my humble opinion. I get roguelikes are supposed to be hard but there's gotta be a limit or at least something more satisfying for us who suck and do 20 runs in a row without getting past the 10thish floor.