Prepare yourself for an 8-bit adventure underground. Drill through the earth and search for valuable metals and precious stones. Buy upgrades for your vehicle along the way, to drill even deeper. The game includes:- 8 types of valuable material- some extra valuable stuff- upgradable vehicle parts- a giant map that allows you to dig deeper than 1000 meters- lots of hours of fun with 20 missions- adjustable controls, check the options menuThe map itself is created at random at the start of every new game. Note: If you want to transfer saved games between the free and premium version, use the import/export button in the options menu.