Joe's Mining Company is specialized in underground exploration to find the most valuable minerals and materials buried deep in earth. Dig as deep as possible to find riches and sell them back to the company. Watch out for falling stones and rocks that can crush you and be fatal, but also create explosions that will reveal many riches. When you come back to the surface you will be able to sell your finds in the Thrift Shop but also to buy improvements in Joe's Mining Shop. Here you will find helmets that will protect you from fatal blows, new tools to dig more efficiently, dynamite and much more. Your character will also gain experience, which will allow you to improve many skills in order to be always more efficient in mining and to go always deeper.