Template:UC
Worlds in RimWorld are generated from either random or user-provided seeds that allow for a completely new experience every time. Each world is uniquely filled with multiple biomes that change what the world looks like and how it behaves. For example, some biomes feature a large amount of mountains, while others are full of grasslands.
Worlds may be named by the player, are arranged in a grid of locations, and come in many different sizes:
| 150x112
|
200x150
|
250x188
|
300x225
|
350x262
|
400x300
|
Every square on a world is unique, with its own biome, elevation, average temperature, terrain, and rainfall amount. A colony can be built on one square. World size has no affect on game performance, as the world is simply used as a seed.
The following controls are used on the World generation menu:
| Controls
|
| LMB
|
Select location
|
| RMB
|
Clear selection
|
| MMB
|
Pan (click+hold)
|