Looterkings

Page [store.steampowered.com]
Looterkings is a procedural dungeon-crawler you can play online in coop-mode with up to 3 of your friends. Loot as much as you can on your way up from the dark caves beneath earth to the surface, gear up and reach your ultimate goal ravaging the hallowed halls of the Elven Queen, eventually.

(idk if this game is allowed or not, sorry if it isn't)