Thanks for your detailed feedback!
>level 1 character on floor 2-2 with no gear or skills is never going to end well
Later there will be options to call more expirienced newcomers with better gear, and/or call one of your other characters (those will wait in tavern/inn, or something like that)
>but no item shop
With that gold you can by items from shop keeper at the Camp, he stays near the bonfire.
>mobile game
Not sure yet, but I'll try it later, and if it'll work I'll do it.