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Forging is the method used to craft arrowheads and improvised tools and requires a forge.

Furnaces & Forges[]


The furnace can be accessed via the circular hatch and operates like a normal firebox. The forge is the horizontal slot above the furnace hatch, and selecting it will open a crafting interface. Furnaces are unique in that they are the only fire boxes capable of exceeding 80 °C in temperature.

Forge locations[]

Working temperature[]

In order to access the forge, the player must bring an active fire in the furnace to a temperature above 150° Celsius (302° Fahrenheit). This is only achievable through adding coal to the fire as it is the only fuel that burns hotter than 80 °C.

Burn time[]

The furnace burn time is capped at 12 hours like all other fires. However, coal can continue to be added even when it is capped for purpose of increasing the temperature only, up to the maximum 200 °C.

  • Once the furnace fire burns out, the forge will not be usable until a new fire achieves working temperature again.

Forge Crafting[]

All crafting in the forge requires a heavy hammer as a tool. Additionally, all recipes require Scrap Metal. The specific items that can be crafted, and their respective requirements, can be found below.

Item Materials Required Time Required
2x Arrowhead icon.png Arrowhead 1x Scrap Metal icon.png Scrap Metal 1 Hour
Improvised Hatchet icon.png Improvised Hatchet 5x Scrap Metal icon.png Scrap Metal
1x Cloth icon.png Cloth
4 Hours
Improvised Knife icon.png Improvised Knife 3x Scrap Metal icon.png Scrap Metal
1x Cloth icon.png Cloth
3 Hours


  • Forging is somewhat time consuming, so it can be worthwhile to take along extra food. Water and food can be cooked atop the forge.
  • Like any time accelerated activity, be aware that condition may rapidly drain if needs are not met.
  • When crafting arrowheads, conserve fuel by making a large number at once.
  • Using a lot of wood fuels to start a fire can serve to minimize the amount of coal required to reach working temperature. (Only 4 Coal is required.)
  • Any fuel may be used to extend the duration of the furnace fire once it has reached its working temperature.
  • Ensure that the required crafting materials are obtained prior to starting the furnace.