Pretty fun simple game. The cost between levels is too high, as they required most of the ore in a section. This is exacerbated by the fact that the mines don't scale with the number of players, so multiple people mining the same ore means less money per person, meaning at a certain point progress basically stops, and your ONLY option is mining the cobble around you. Has an AWFUL bug where sometimes everyone on the server is forced to crouch, meaning you can't jump or go up stairs.