Pen marker

From RimWorld Wiki
Jump to navigation Jump to search

Pen marker

Pen marker

A post with a sign designating an animal pen. It must be placed in an area enclosed by fences, barricades, walls, and doors. You can assign each pen marker a set of animals to accept, and handlers will bring animals to an appropriate pen.

Base Stats

8 kg
Path Cost


1 × 1
pass through only
Cover Effectiveness
Terrain Affordance


Work To Make
600 ticks (10 secs)
Stuff Tags
Metallic, Woody, Stony
Resources to make
Stuff 30
Deconstruct yield
Stuff 15
Destroy yield
Stuff 7 - 8

Pen markers designate a zone for pen animals to be held, and one is required if you wish to "rope" a tamed animal and lead them to that pen. Pen markers determine which types of animals will be kept in each pen, and provide other utility as well. Each different pen that you wish to use needs a pen marker.


Pen markers can be constructed, each requiring Stuff 30 Stuff (Metallic/Woody/Stony, 300 for SMVs) and 600 ticks (10 secs) of work modified by the construction speed of the builder and the work to build factor and offset of the material.


While all animals are tamable, some animals cannot be trained or set to an allowed area and instead must be led to a designated pen; if they are not led to a designated pen or have an accessible path to exit the map, pen animals will slowly wander away. Pens can only be defined by a pen marker.


Pen markers are cheap (30 material), and are required if you wish to actively use your pens, to lead recently tamed animals to that pen so they don't wander away. A pen is defined when a pen marker is placed within fences, walls, doors and natural terrain (hills) preventing any exit toward the sides of the map. However, unlike rooms, pens will expand if a gate, door or animal flaps is "held open", allowing you to easily expand, restrict or open pen areas when needed. (This also means that if you "hold open" a door leading to a pen, those halls and rooms will soon be visited by any pen animals, and their filth.)

In addition to defining a pen, Pen markers provide three tabs (see images at bottom) to help manage domestic/tamed animals. These are:

  • An "Animals" menu in order to select what animals are allowed in that pen (male / female option included).
  • A "Food" information popup that shows the available "grazing" nutrition value of the pen, the number of different animals currently in the pen, and the total consumption calculation. By default, cows/goats/chickens are shown, plus any animals actually present, and you can "force" other animals onto the list if you wish to see their consumption rates. This can help you plan whether the field size holds enough nutrition for them to graze unassisted, or if you'll need to manually feed them to supplement their grazing.
  • An "Auto-cut" menu to designate what plants are allowed to grow within the pen and what are not. (Some are good grazing food, some are not (and these are selected by default), but cutting them does require labor from your colony.)

When managing pens make sure to check the nutrition grown compared to the nutrition consumed, if there nutrition grown is less than the nutrition consumed then animal starvation is inevitable.

Pen Marker Menus

Stats table

  • Pen marker Pen marker Beauty Work to Build HP Flamma­bility Market
    Bioferrite Bioferrite Content added by the Anomaly DLC 0 001,500 ticks (25 secs) 200 75% 28 Silver
    Gold Gold 20 000,540 ticks (9 secs) 60 40% 3,000 Silver
    Granite blocks Granite blocks 0 003,740 ticks (1.04 mins) 170 0% 41 Silver
    Limestone blocks Limestone blocks 0 003,740 ticks (1.04 mins) 155 0% 41 Silver
    Marble blocks Marble blocks 1 003,440 ticks (57.33 secs) 120 0% 39 Silver
    Plasteel Plasteel 0 001,320 ticks (22 secs) 280 0% 275 Silver
    Sandstone blocks Sandstone blocks 0 003,140 ticks (52.33 secs) 140 0% 38 Silver
    Silver Silver 6 000,600 ticks (10 secs) 70 40% 300 Silver
    Slate blocks Slate blocks 0 003,740 ticks (1.04 mins) 130 0% 41 Silver
    Steel Steel 0 000,600 ticks (10 secs) 100 40% 59 Silver
    Jade Jade 10 003,000 ticks (50 secs) 50 0% 161 Silver
    Uranium Uranium 0 001,140 ticks (19 secs) 250 0% 184 Silver
    Wood Wood 0 000,420 ticks (7 secs) 65 100% 38 Silver
  • Version history[edit]

    • 1.3.3066 - Added
    • 1.3.3101 - Fix: Animal pen marker animal consumption assumes animals are always hungry, halving reported consumption.