Games like BARRIER X
Games like BARRIER X include Geometry Dash, A Dance of Fire and Ice, Super Hexagon, Muse Dash, and Just Shapes & Beats. We matched them by the tags players give BARRIER X on Steam (Indie, Arcade, Action, Difficult, and Music): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Difficult · Music · Great Soundtrack

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

Super Hexagon
Shared: Indie · Difficult · Arcade

Muse Dash
Shared: Music · Rhythm · Great Soundtrack

Just Shapes & Beats
Shared: Music · Great Soundtrack · Difficult

Rift of the NecroDancer
Shared: Indie · Music · Difficult

Spin Rhythm XD
Shared: Indie · Music · Difficult

Sayonara Wild Hearts
Shared: Action · Great Soundtrack · Music

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

DJMAX RESPECT V
Shared: Music · Action · Rhythm

Rhythm Doctor
Shared: Music · Indie · Rhythm

Music Racer
Shared: Indie · Music · Action

Hollow Knight
Shared: Difficult · Indie · Great Soundtrack

Intralism
Shared: Indie · Music · Difficult

AudioSurf
Shared: Indie · Music · Arcade

Thumper
Shared: Indie · Action · Rhythm

Timberman
Shared: Indie · Action · Arcade

Rogue Legacy 2
Shared: Arcade · Indie · Action

Cuphead
Shared: Difficult · Indie · Great Soundtrack

Melatonin
Shared: Indie · Rhythm · Music

Audiosurf 2
Shared: Indie · Music · Arcade

Celeste
Shared: Difficult · Indie · Great Soundtrack

Pizza Tower
Shared: Indie · Great Soundtrack · Action

Electronic Super Joy
Shared: Indie · Difficult · Great Soundtrack