Explore the dangerous mine. Find a coal, silver, gold, platinum and diamonds. But look out for a dangerous water sources and do not drown there. Keep Your health on a high level to survive and back to home. Buy a few dynamite sticks from time to time and make a little booom to fast remove more ground. But if You wanna to be on the Leaderboard You have to back on the ground and sell something in the bank. Your cash is Your score, so if You die or stay forever under the ground with tons of gold... You loose all of them. Remember about ladders and dridges and always build a way to back to the elevator. Economy is also important. Coal is cheap and You dont earn to much. When You earn more cash You can but additional tools to help You survive. You can buy a better driller to crush each stone, water pump, or lamp to scan a ground around You. It may save You life or a lot of health. Hospital are really expensive, so the tools may save You a lot of cash. Each mine contaisns over 7400 fields to dig!