This is a strategy game in which you have to find valuable items from the depth of the earths crust. Use the drilling machine to dig as deep as possible and mine your collected resources. You can use these resources in exchange with repairs and refueling your drilling machine. Use the arrow keys to move the machine around and the down key to start drilling. Keep an eye on your fuel tank and heat meter. You can also buy dynamites to effectively collect valuable resources. Buy teleport, extra fuel, sonar pulse and repairs by using your resources. Explore the whole area for the highest score.