Deep UndergroundDeep Underground Unblocked Enter the cave to rescue all miners who got stucked in the deep underground. Therefore, you must steer your tiny shuttle through the deep, dark ground as you try to find the people. Along the way you can find treasure chests filled with gold coins, which you have to get to buy upgrades for your ship. But you will also find obstacles and traps in the deep of the mine. Try to pass them all without destroying your ship.