Games like Radial Flow
Games like Radial Flow include A Dance of Fire and Ice, Super Hexagon, Geometry Dash, Rift of the NecroDancer, and Muse Dash. We matched them by the tags players give Radial Flow on Steam (Action, Arcade, Rhythm, Difficult, and Indie): closest matches first, and among equally close ones the better-known games.

A Dance of Fire and Ice
Shared: Rhythm · Difficult · Arcade

Super Hexagon
Shared: Difficult · Arcade · Indie

Geometry Dash
Shared: Difficult · Rhythm · Music

Rift of the NecroDancer
Shared: Rhythm · Difficult · Indie

Muse Dash
Shared: Rhythm · Music · Colorful

Just Shapes & Beats
Shared: Rhythm · Difficult · Action

Thumper
Shared: Action · Rhythm · Indie

Spin Rhythm XD
Shared: Rhythm · Action · Difficult

Melatonin
Shared: Rhythm · Indie · Colorful

DJMAX RESPECT V
Shared: Rhythm · Action · Arcade

AudioSurf
Shared: Rhythm · Indie · Arcade

BIT.TRIP BEAT
Shared: Rhythm · Action · Indie

Intralism
Shared: Rhythm · Indie · Difficult

Music Racer
Shared: Rhythm · Action · Indie

Beatblock
Shared: Rhythm · Arcade · Difficult

Neon Drive
Shared: Rhythm · Difficult · Action

Rhythm Doctor
Shared: Rhythm · Action · Indie

BARRIER X
Shared: Arcade · Action · Indie

140
Shared: Rhythm · Indie · Difficult

Orbt XL
Shared: Arcade · Difficult · Action

Rogue Legacy 2
Shared: Arcade · Action · Indie

64.0
Shared: Action · Difficult · Rhythm

Sayonara Wild Hearts
Shared: Rhythm · Action · Arcade

BIT.TRIP RUNNER
Shared: Rhythm · Action · Arcade