Diggy 2

What mysteries and riches are hidden in the depths of the earth? Dig and discover a mountain of treasures in the game Diggy 2. Using your drill you will sink deeper and deeper into the confines of the earth's crust. You will find metals, gold, diamonds and many other mysterious objects. But to get even deeper, most part of your treasures will have to be resold in order to buy improvements for your drill. In how many days will you be able to reach the center of planet earth?