Coal is an item mainly used as a source of fuel, but is also used to craft various items.
Obtaining
Mining
Coal rocks naturally generate in the mining zone in the Hub, Slime Island, and Buffalkor Island. Mining a coal rock yields 1 - 2 coal after each stage and 3 Mining XP (6 with the 4x daily bonus), resulting in a total of 2 - 4 coal and 9 Mining XP (18 with the 4x daily bonus) per rock.
Mob drop
Coal rock mimics are guaranteed to drop 5 - 9 coal upon defeat.
Totem
Coal totems can be purchased from Arius in the Hub for 3,000 coins. A coal totem will spawn coal rocks around it when placed, or if placed next to a conveyor belt, the totem will drop coal directly onto the conveyor.
Breaking
| Coal Rock Breaking Data | ||
|---|---|---|
| Hardness | 12 | |
| Best Tool | None | |
| Max Hits Needed | ||
| Material/Tool | Axe | Pickaxe |
| Stone Shovel | 18 | |
| Wooden | 36 | 36 |
| Stone | 20 | 20 |
| Iron | 12 | 12 |
| Gilded Steel | 9 | 9 |
| Diamond | 6 | 6 |
| Opal | 5 | 5 |
| Void Mattock | 3 | |
Usage
Crafting ingredient
Fuel
Coal can be used as a fuel source for the campfire, small furnace, sawmill, stonecutter, industrial oven, industrial sawmill, industrial smelter, industrial stonecutter, industrial washing station, industrial lumbermill, industrial polishing station, steel mill, drill, pumpjack, and steam generator. The fuel lasts for approximately 30 seconds and is the fundamental resource for industrial automation. Coal inside small furnaces can smelt 2.25 items. Coal inside campfires can smelt 1.25 items.
Automated fuel
A coal totem placed next to a conveyor leading to an industrial machine will automatically drop coal onto the conveyor belt and fuel the machine.