Games like Rainbow Hunter
Games like Rainbow Hunter include Geometry Dash, Hollow Knight: Silksong, A Dance of Fire and Ice, Super Hexagon, and Hollow Knight. We matched them by the tags players give Rainbow Hunter on Steam (Indie, Casual, Adventure, Runner, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Great Soundtrack · Music · Difficult

Hollow Knight: Silksong
Shared: Indie · Great Soundtrack · Singleplayer

A Dance of Fire and Ice
Shared: Indie · Singleplayer · Music

Super Hexagon
Shared: Indie · Great Soundtrack · Difficult

Hollow Knight
Shared: Indie · Great Soundtrack · Singleplayer

Muse Dash
Shared: Casual · Great Soundtrack · Music

GRIS
Shared: Indie · Great Soundtrack · Adventure

ABZU
Shared: Adventure · Great Soundtrack · Casual

Slime Rancher
Shared: Adventure · Singleplayer · Colorful

Florence
Shared: Indie · Casual · Adventure

AudioSurf
Shared: Indie · Casual · Music

Chants of Sennaar
Shared: Adventure · Indie · Singleplayer

To the Moon
Shared: Indie · Great Soundtrack · Adventure

Celeste
Shared: Indie · Great Soundtrack · Difficult

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Controller

Hyper Light Drifter
Shared: Indie · Great Soundtrack · Adventure

Bastion
Shared: Indie · Great Soundtrack · Singleplayer

Donut County
Shared: Indie · Casual · Adventure

Journey
Shared: Indie · Adventure · Great Soundtrack

Morphopolis
Shared: Indie · Casual · Adventure

Spin Rhythm XD
Shared: Casual · Indie · Music

Firewatch
Shared: Adventure · Indie · Singleplayer

Rock 'N' Roll Defense
Shared: Casual · Adventure · Indie

Little Inferno
Shared: Indie · Casual · Singleplayer