The World-Ruling Dungeon

"Let me check real quick if I got what you said... Not only I'll be stuck forever in a cave because I'll become immortal, I won't have any contact with humans and if someone hits me hard enough I die for good? Are you mental?" "Nah, that's pretty much it, good luck. See you again when you die." "You fucking assh-.." Yelp. Now I'm stuck in this dungeon forever, what the heck is there to do here?