Fungus darktorch

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Fungus darktorch

Fungus darktorch

A specially-treated fungus torch that produces a dim light over a large area. People who prefer darklight work best with this light source. Can be automatically refueled with raw fungus. Produces a small amount of heat.

Base Stats

Market Value
22 Silver [Note]
Style Dominance
Path Cost


1 × 1
pass through only
Cover Effectiveness
Terrain Affordance
Light Radius
Heat Per Second
Stops Heating At
23 °C (73.4 °F)


Work To Make
100 ticks (1.67 secs)
Resources to make
Raw fungus 20
Deconstruct yield
Destroy yield

The fungus darktorch is a piece of furniture that burns raw fungus to light an area with darklight, while also generating a small amount of heat.


Fungus darktorches can be constructed, each requiring Raw fungus 20 Raw fungi and 100 ticks (1.67 secs) of work modified by the construction speed of the builder.

Once constructed, they cannot be re-installed, they can only be deconstructed.


The white area (4 tiles out) is 50% illumination, required for best surgery success chance; the yellow (5th tile) represents 30% or better, adequate for all general labor, avoiding mood penalties, and for growing decorative plants indoors in plant pots.

The fungus darktorch outputs light in a 7 tile radius, with the nearest 4.746 tiles being above 50% light level and considered lit. It heats the room to a maximum temperature of 23 °C (73.4 °F) at a rate of 3.5 heat per second.[Exact mechanic unclear]

It consumes Raw fungus 1.5 raw fungus per day as long as it is lit. It can hold up to Raw fungus 20 raw fungus at a time, for a maximum run time of 13.33 days. It is constructed with a full fuel capacity. Fuel is delivered to the torch lamp by a haulers as long as refueling is enabled. It cannot be "turned off" or paused, only deconstructed, in which case no material is recovered, regardless of any "fuel" remaining.

If under the rain and unroofed, it consumes an additional Raw fungus 0.0006 raw fungus per 1 tick (0.02 secs), or 37.5 fungus per day. It therefore lasts for 0.53 days if in constant rain.

The fungus darktorch differs from the torch lamp in that it does not count as "bright light" for the Lighting: Darklight Preferred precept. Instead, it gives those with the precept a +4 moodlet, and prevents surgery penalties for being in darkness. It is identical to the darktorch except in that it burns raw fungus instead of wood.


It is generally not resource and work-time efficient to use compared to standing lamps once Electricity has been researched. Its grid independence and immunity to power outages and solar flares make it very useful in niche applications even beyond this point.

Fungus darktorches consume 1.5 raw fungus per day, and regular darktorches burn 1.5 wood per day. When actively growing crops, nutrifungus takes much less work per unit fuel than virtually any tree. However, growing nutrifungus is worse than harvesting wild, already grown trees near your base. ​A base deep inside a mountain would have to walk a long distance for the nearest tree, even in a rainforest, making fungus more efficient.

Torch lamps consume more wood than darktorches, though are still more efficient when wood is reasonably available.

Version history[edit]

  • Ideology DLC Release - Added.
  • 1.3.3076 - Description no longer incorrectly states it is refueled with wood.