I played for a while, i must admit it lol
It's pretty addicting and the graphics were pretty nice (sadly lacks of animations) but i still enjoied it a lot!
There is also like 100% win rate every time, so i would add (if you want to continue this game) something that would actually require extra things to do, like maybe needing to go back to the first floors to upgrade the crossbows or to replace them with other weapons. Nice idea overall! :D