Craft The World - Abandoned Mines

The “Abandoned Mines” DLC will add new underground structures – abandoned mines – to all worlds.
Long ago, dwarves – searching for ore at the cores of many worlds – built mineshafts wherever they found coal and iron, but for an unknown reason those mines now lay empty, the dwarves left them forever.
Upon discovering an abandoned mine, you may take everything you find there. In addition, mineshafts will also have some unique items.