Steam DB Steam DB Underground Miner
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!