Idle tycoon: Crystal mine, diamond mine and gold mine

Idle tycoon: Crystal mine, diamond mine and gold mine - become an owner of a gold mine. Get gold and other valuable materials, develop your business. In this Android game you are going to run a mining company. It is a profitable business, since your main working power is represented by prisoners. Hire managers and other managing staff to increase motivation and efficiency of miners' work. Be ready to struggle against dangers of the underground world. Build useful constructions and expand your city. Unlock new mines and increase profit.

Game features:

• Bright graphics
  
• Profitable mines
  
• Various characters
  
• Useful upgrades
  
• Simple system of controls