Map

The world of Rain World is enormous. It is comprised of 12 distinct Regions, which are each made up of Rooms- anywhere from a dozen to 3-dozen Rooms can be a part of one Region.

Each Region has its own challenges and theme, and are further divided into sub-regions. Regions and sub-regions will usually display their name upon first entering them.

Some rooms are multiple screens long.

In the event that a Room is multiple screens, an image showing all of the screens will be provided under each Room's Wiki page.

Below is a rough map of the regions, and how they connect with each other. Credit to reddit user QuiteSomeBiscuit

Regions
This is a list of Regions and Subregions in Rain World. If there are any missing, feel free to add them to the list!


 * Chimney Canopy
 * Drainage System
 * The Exterior
 * The Leg
 * Underhang
 * The Wall
 * Farm Arrays
 * Five Pebbles
 * General Systems Bus
 * Memory Conflux
 * Unfortunate Development
 * Garbage Wastes
 * Industrial Complex
 * Outskirts
 * Shaded Citadel
 * Memory Crypts
 * Shoreline
 * Looks to the Moon
 * Sky Islands
 * Communications Arrays
 * Subterranean
 * Depths
 * Filtration System

In-Game Map
In-game, the Slugcat uses a map based off of memory. Slugcat will memorize the areas that the player sees, even after death. Certain hidden rooms won't show up on this map, like Scavenger Merchant rooms.