Sea ice

Sea ice

Permanent ice sheets floating on water. There is no soil for plants to grow, no minerals to mine, and almost no animal life.
Sea ice is extremely inhospitable. There is no soil for plants and almost no animal life. Long-term survival is a challenge.

Base Stats

Type

Biome

Texture on World Map

Allows colonies

Yes

Allows Roads and Rivers

Yes

Animal Density

0.1

Plant Density

0

Disease MTB Days

90 days

Movement Difficulty

1.5^[Note]

Forageability

0%

Min Temperature

N/A

Max Temperature

-22 °C (-7.6 °F)

Rainfall range

N/A

Swampiness range

N/A

Max Fish Population

650

Weather Commonalities

Clear

12

Dry Thunderstorm

2

Soft snow

8

Hard snow

8

Gray Pall

1

Windy

1

Overcast

1

Blizzard

2

Sea ice is a cold biome in RimWorld.

Summary

Sea Ice maps do not have geothermal vents or ruins (except in ancient complex sites). Deep drills cannot dig up stone chunks and moisture pumps will only generate more ice, which means it is impossible to grow anything on the ground. You will need to do hunting, trading and cannibalism until you get a heater, a sun lamp and a hydroponics basin. It is worth mentioning that Sea Ice was designed to not allow colony building, only to allow traveling in the area, even though it is possible.

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

Flora

None.

Fauna

• Arctic fox (0.1)
• Arctic wolf (0.1)
• Muffalo (0.1)
• Polar bear (0.1)
• Snowhare (2)

Additionally, these animals can spawn in coastal maps:

• Penguin  (0.1)
• Walrus  (0.1)

If the map is polluted, then no wild animal will spawn.

Diseases

Sea Ice has a disease MTB of 90 days. The following diseases can occur in a Sea Ice:

Disease	Commonality
Flu	100
Plague	80
Fibrous mechanites	30
Sensory mechanites	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

Gallery

• 

  A Sea Ice

• 

  Sea Ice's texture on the world map

Version history

• 0.11.877 - 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