Games like EternAlgoRhythm
Games like EternAlgoRhythm include Geometry Dash, A Dance of Fire and Ice, AudioSurf, Music Racer, and Beat Saber. We matched them by the tags players give EternAlgoRhythm on Steam (Rhythm, Music-Based Procedural Generation, Procedural Generation, Music, and Colorful): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Music · Rhythm · Level Editor

A Dance of Fire and Ice
Shared: Rhythm · Music · Level Editor

AudioSurf
Shared: Rhythm · Music · Music-Based Procedural Generation

Music Racer
Shared: Rhythm · Music · Music-Based Procedural Generation

Beat Saber
Shared: Rhythm · Music · Music-Based Procedural Generation

Rhythm Doctor
Shared: Rhythm · Music · Level Editor

Intralism
Shared: Rhythm · Music · Level Editor

Muse Dash
Shared: Rhythm · Music · Colorful

Audiosurf 2
Shared: Rhythm · Music · Music-Based Procedural Generation

Rift of the NecroDancer
Shared: Rhythm · Music · Colorful

Melody's Escape
Shared: Rhythm · Music-Based Procedural Generation · Colorful

Melatonin
Shared: Rhythm · Colorful · Music

Beat Hazard 2
Shared: Rhythm · Music-Based Procedural Generation · Procedural Generation

Beat Hazard
Shared: Rhythm · Music-Based Procedural Generation · Music

Hi-Fi RUSH
Shared: Rhythm · Music · Singleplayer

Just Shapes & Beats
Shared: Rhythm · Music · Indie

Super Hexagon
Shared: Rhythm · Indie · Minimalist

140
Shared: Rhythm · Music · Minimalist

Sayonara Wild Hearts
Shared: Rhythm · Music · Colorful

Soundodger+
Shared: Rhythm · Music · Music-Based Procedural Generation

Spin Rhythm XD
Shared: Rhythm · Music · Indie

Trombone Champ
Shared: Rhythm · Music · Colorful

DJMAX RESPECT V
Shared: Rhythm · Music · Singleplayer

EZ2ON REBOOT : R
Shared: Rhythm · Music · Action