Cavedust

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Cavedust
Cavedust.png
Vital statistics
Size 1 x 1
Skill(s) RequiredSpecific needed skills.<br>The default skills every hearthling starts off with, Oral Tradition, Primitive Tools & Wilderness Survival), are ignored. Mining
Produced By Dust Pile or Pyrite Spark or Cave Walls
Required By (4) Gemdust, Gilded Nautilus, Hemp Fibre Finery, Petraglyph
Study details
Base LP 1000
Study Time <b>StudyTime Input:</b><br><br >The studytime infobox parameter accepts two formats. An Hour-float (studyTime = H.hhhh) or a Time-code (studyTime = H:M).<br >(Note: Study-Time should be in real-time, and not in game-time.)<br ><br >Proper input rules:<br >H.hhhh: (Dot delimited) At least one leading digit, and at least 4 decimal digits.(good: "0.1230", bad: ".123")<br >H:M: (Colon delimited) At least one hour digit, and 1 or 2 minute digits. (good: "0:1", bad: ":1" or "0:123")<br><br >(Although bare integer-input would work for both format cases, it is currently deemed improper formatted input.)<br > 33h 0m
Mental Weight 8
EXP Cost 10
LP / EXP 100
LP / Hour (real) 30.3
LP / Mental Weight 125
LP / Hour / EXP 3.03
LP / Hour / Size 30.3
LP / Hour / Weight 3.79
LP / Hour / Size / EXP 3.03
LP / Hour / Weight / EXP 0.38
Go to Objects

The Cavedust is a Curiosity which can be used in the Study Report to earn Learning Points.


Cavedust is a stackable powder that can be studied. It is created by mining certain walls in caves. If a cave wall is adjacent to a tile that will cause a cave-in, it will create a cavedust. A cave-in tile will not cave-in if it is within range of a support. The LP gain amount listed only applies to a full stack of 0.50kg of Cavedust. Smaller amounts can be studied, but the LP gain is reduced proportionally.


The amount of dust that drop is very important when trying to figure out cave-ins. If the amount dropped is 0.01, it means that there is 1 tile around it (diagonals included) that will cause a cave-in. If it is 0.02, then there is two cave-ins around that tile. The quantity can theoretically go up to 0.08, with an equal amount of cave-ins. This system is very reminiscent of the well known game Minesweeper.

Game Development

  • Loose Velvet (2023-06-22) >"When outside the protection of a mine support, encountering a mine warning tile (e.g. one near a cavein tile, where cave dust falls) will interrupt area mining operations."