There should be another use for Wetstones, as of now once u each a certain point they're completly useless. I currently have over 1k of them and no use. Since I blaze through hammers so quickly there's no Point in upgrading them and I also have 300~ Keys so i dont need to craft them either.
Looks like the Arena isnt working properly: no death count and no lever to leave the arena. Also i think there are too many monsters spawnig at the beginning, if u just started the force spawned at the start is very overwhelming. Looks like i'm gonna spend a few hours in this game......