Kept crashing now and then (particularly when using stairs) until I swapped to using solely the numpad instead of the mouse to interact (except for picking up green potions, seems I can only do that with the mouse), but got stuck on Lvl 48 because I have 25 swords and the only door left is blocked by a sword I can't pick up :(
also could not figure out the mage at all, seems like they have no way to attack despite what I assume is a mana bar in the top left?