Tundra

Tundra

These mostly-frozen plains bear almost no trees and little vegetation. There are a few small animals interspersed with large herds of migratory grazers and their predators.

Base Stats

Type

Biome

Texture on World Map

Allows colonies

Yes

Allows Roads and Rivers

Yes

Animal Density

1.1

Plant Density

0.19

Disease MTB Days

80 days

Movement Difficulty

1^[Note]

Forageability

50%

Wild Plant Regrow Days

28 days

Min Temperature

N/A

Max Temperature

0 °C (32 °F)

Rainfall range

N/A

Swampiness range

N/A

Max Fish Population

600

Weather Commonalities

Clear

18

Fog

1

Rain

2

Foggy rain

1

Dry Thunderstorm

1

Rainy Thunderstorm

1

Soft snow

4

Hard snow

4

Gray Pall

1

Windy

2

Overcast

2

Blizzard

1

Tundra is a cold biome in RimWorld.

Summary

Animal migrations may occur once or twice per year. Growing periods are generally very short or non-existent.

In the lists below the number in brackets represents the relative commonality.

Flora

• Astragalus (0.1)
• Berry bush (0.07)
• Birch tree (0.08)
• Bush (0.3)
• Dandelions (0.1)
• Grass (3.6)
• Moss (0.5)
• Pine tree (0.08)
• Wild healroot (0.05)
• Gray grass  (3)
• Gray pine tree  (0.08)
• Bulrush  (0.2)
• Fireweed  (0.1)
• Reeds  (1)

Fauna

• Arctic fox (0.07)
• Arctic wolf (0.07)
• Caribou (2)
• Elk (2)
• Grizzly bear (0.07)
• Hare (2)
• Ibex (2)
• Lynx (0.07)
• Megasloth (0.2)
• Muffalo (2)
• Polar bear (0.07)
• Snowhare (2)
• Timber wolf (0.07)
• Warg (0.07)
• Greatwolf  (0.07)
• Moose  (0.2)
• Muskox  (1)
• Sparrow  (0.5)
• Wolverine  (0.07)

Additionally, these animals can spawn in coastal maps:

• Sea lion  (0.1)
• Walrus  (0.1)

If the map is polluted, then the game may choose to spawn in wild animals from this list instead:

• Warg (0.05)
• Waste rat  (1)

Diseases

Tundra has a disease MTB of 80 days. The following diseases can occur in a Tundra:

Disease	Commonality
Flu	100
Plague	80
Gut worms	30
Fibrous mechanites	40
Sensory mechanites	40
Muscle parasites	30
Animal flu	100
Animal plague	80
Organ decay	10

Fish

The table below contains the list of all of the fish that can be caught - as well as where they can be caught.

Fish	Water body	Rarity
Salmon	Freshwater	Common
Frostfish	Freshwater	Uncommon
Salmon	Saltwater	Common
Cod	Saltwater	Common
Dogfish	Saltwater	Uncommon

Analysis

Tundra is the coldest biome that still allows for outdoor crop growth. It is a step harder to start in than the boreal forest, as more crops need to be grown before the long winter starts.

• Food and Growing: Moderate to Very Difficult - Growing seasons range from 20 days to 0 days long. Forageable plants and animals are less frequent, but are present. There is plenty of regular soil and some rich soil, so greenhouses don't need hydroponics to be established.

• Disease: Easy - Disease events are uncommon. Healroot still grows naturally during the summer, and healroot plants will survive (but not grow in) the cold.

• Temperature: Moderate to Very Difficult - Warmer tundra tiles can give you some time to prepare before freezing temperatures kick in, and there are some trees to make campfires in a pinch. In the coldest tundra tiles, outdoor temperatures won't go above freezing. In any case, steam geysers can be enclosed inside your starter base for free heating.

• Fires: Easy - Low plant life means fires are not difficult to fight.

Overall starting difficulty ranges from moderate to difficult, depending on how long the growing season lasts. Significant preparation needs to be done each summer until greenhouses are established. Once greenhouses are established, the difficulty is similar to most other biomes, with less disease than warm biomes but winters forcing more insulative clothing.

Gallery

• 

  A Tundra

• 

  Tundra's texture on the world map

Version history

• 0.8.657 - Added

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Biomes

Temperate

Temperate forest • Temperate swamp • Scarlands

Hot

Tropical rainforest • Tropical swamp • Arid shrubland • Desert • Extreme desert • Glowforest • Grassland • Lava field

Cold

Boreal forest • Cold bog • Tundra • Ice sheet • Sea ice • Glacial plain • Orbit

Water

Lake • Ocean

Pocket map

Underground • Labyrinth • Metal hell • Undercave • Insect lair