Ocean

Ocean is a water biome in RimWorld.

Summary[edit]

Ocean acts as a background biome on the surface of the world. You cannot settle, nor enter an ocean tile.

It is mechanically the same as the lake biome, with a few exceptions:

Entering a tile next to a lake/ocean tile with make the water body on the coastline be freshwater or saltwater, respectively.
A water tile will be a lake if it's part of a water body with a size of 15 tiles or smaller, otherwise it will be ocean.

An ocean tile, as well as lake and sea ice, has a pollution factor of 8 - dumping toxic wastepacks onto these tiles will pollute them eight times more than a normal land tile.