From Unofficial Stationeers Wiki

game version: 0.2.3566

Making charcoal[edit]

Charcoal is an ore. But it can't be mined, it must be made from organic matter.

Plants, cooked food, decayed food, or seeds gives one reagents mix when going through the Recycler.

This reagent mix can be put it into a Centrifuge, Arc Furnace, or Furnace, which gives one Biomass.

The Biomass can then be cooked in a Furnace at over 580K (or in the Arc Furnace, which consumes energy), this will produce one Charcoal per Biomass.

The overall ratio is 1 Charcoal for every 1 plant/cooked food/decayed food/seed.

Steel from iron and charcoal[edit]

Charcoal can replace Coal when making Steel. The ratio is the same, 1 Charcoal for every 3 Iron ore.


When Charcoal is burned in a Solid Generator it will release 3 mol CO2 and 3 mol of X. These gases can also be released in a Furnace or Arc-Furnace without destroying the Charcoal.

When Biomass is converted to Charcoal, each one will release 8 mol of Volatiles and 4 mol of X.

With Carbon Dioxide from Charcoal, Volatiles from Biomass, and Oxygen from living plants, it becomes possible to create a renewable cycle that creates and consumes these three gases. It's preferable to keep the level of Carbon Dioxide in the plants atmosphere as low as possible without allowing it to reach zero. This is because plants in the game will consume less Carbon Dioxide when there is less of it available, while still being able to grow at a normal rate and produce Oxygen at full capacity.


Charcoal can be burned in the Solid Fuel Generator to produce power. But it does not behave like regular Coal does [1].

When 1 Charcoal is burned, it will burn for 6 game-ticks (3 seconds) and release 20 kW of power each tick, for a total of 120 kW.

When a stack of Charcoal is burned, they will not burn to completion, they will only burn for ~2 game-ticks which gives ~40 kW power each. Only ~33% of the available power is obtained.

With a little bit of automation it's possible to release 100% of the energy from a stack of Charcoal. A Stacker controlled by an IC can be used to release the Charcoal one by one every 8 game-ticks, this is enough time for each Charcoal to always burn to completion.

Example IC code - releasing Charcoal from a Stacker to a Solid Generator to get 100% power efficiency:

alias Stacker d0

s Stacker Mode 1
s Stacker Setting 1

ls r0 Stacker 2 Occupied
beqz r0 MaxCharcoalPower
s Stacker Output 0
sleep 3.5
j MaxCharcoalPower