Games like Chemicalizer
Games like Chemicalizer include DJMAX RESPECT V, Muse Dash, Geometry Dash, A Dance of Fire and Ice, and Incredibox. We matched them by the tags players give Chemicalizer on Steam (Casual, Rhythm, 2D Platformer, 2D, and 3D): closest matches first, and among equally close ones the better-known games.

DJMAX RESPECT V
Shared: Rhythm · Casual · 2D

Muse Dash
Shared: Rhythm · Casual · 2D

Geometry Dash
Shared: Rhythm · 2D · Singleplayer

A Dance of Fire and Ice
Shared: Rhythm · 2D · Casual

Incredibox
Shared: Casual · Rhythm · 2D

Rhythia
Shared: Casual · Rhythm · 2D

Escape the Backrooms
Shared: Horror · Psychological Horror · 3D

MiSide
Shared: Horror · Psychological Horror · 3D

Spin Rhythm XD
Shared: Rhythm · Casual · Controller

Bloons TD 6
Shared: Casual · 3D · Singleplayer

Firework
Shared: Horror · 2D · Psychological Horror

Brawlhalla
Shared: Casual · 2D Platformer · Controller

Cookie Clicker
Shared: Casual · Horror · 2D

DISTRAINT: Deluxe Edition
Shared: 2D · Horror · Psychological Horror

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Horror · Casual

KinitoPET
Shared: Horror · 2D · Psychological Horror

SpaceEngine
Shared: Casual · 3D · Science

Sixtar Gate: STARTRAIL
Shared: Casual · Rhythm · 2D

Phasmophobia
Shared: Horror · Psychological Horror · 3D

Gorilla Tag
Shared: Psychological Horror · Horror · 3D

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Early Access

DISTRAINT 2
Shared: Horror · Psychological Horror · 2D

Rhythm Doctor
Shared: Rhythm · 2D · Casual

Dancing Line
Shared: Casual · Rhythm · 3D