Games like The Rainbow World
Games like The Rainbow World include Dust: An Elysian Tail, Hyper Light Drifter, Wolcen: Lords of Mayhem, Cat Quest, and Bastion. We matched them by the tags players give The Rainbow World on Steam (Indie, RPG, Action, Adventure, and 2D): closest matches first, and among equally close ones the better-known games.

Dust: An Elysian Tail
Shared: Action · Indie · RPG

Hyper Light Drifter
Shared: Indie · Adventure · Action

Wolcen: Lords of Mayhem
Shared: RPG · Action · Indie

Cat Quest
Shared: RPG · Adventure · Action

Bastion
Shared: Indie · Action · RPG

ICEY
Shared: Action · Indie · Adventure

God of War
Shared: Action · Adventure · RPG

Last Epoch
Shared: RPG · Action · Hack and Slash

Nobody Saves the World
Shared: Indie · Action · Adventure

鬼谷八荒 Tale of Immortal
Shared: RPG · Singleplayer · Action

Minishoot' Adventures
Shared: RPG · Adventure · Exploration

Dungeon Munchies
Shared: Indie · Action · Adventure

Slime Rancher
Shared: Adventure · Exploration · Colorful

Fallout 4
Shared: RPG · Adventure · Exploration

Minecraft Dungeons
Shared: RPG · Adventure · Action

Minecraft Dungeons II
Shared: Action · RPG · Adventure

Escape From Duckov
Shared: Action · Adventure · Top-Down Shooter

The Vagrant
Shared: Action · RPG · 2D

Hero Siege
Shared: RPG · Indie · Hack and Slash

Crimson Desert Enhanced
Shared: Action · Adventure · RPG

Hollow Knight: Silksong
Shared: Indie · 2D · Adventure

Cat Quest II
Shared: Adventure · RPG · Exploration

Hollow Knight
Shared: Indie · 2D · Adventure

Monster Hunter: World
Shared: Action · RPG · Adventure