Coal is an ore which can be mined with any pickaxe. It is used as fuel in the Smelter.


  • Coal ore CANNOT be smelted into ingots, nor used to make tools.


  • If you cannot find coal ore in the Mines, you can also use firewood which can be made by hitting Logs with a axe.
  • When done powering the smelter, turn it off to save some fuel. Otherwise it will continue to use fuel, despite doing no useful work.

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