Definitely above average. Pros: Solid responsive sound effects, a clear gameplay loop, good original artwork. Details: I feel this is a deckbuilder that could have capitalized more on the countdown theme. While you do count the floors as you descend, i feel that concept could synergize better with the core mechanics.  As good as the game is at what it does, it doesn't really stand out from others in the genre or possess its own unique charm. That doesn't make it a bad game at all, quite the opposite, it just means it has lot of potential. Good game.