Games like Afterbeat (Project Arrhythmia)
Games like Afterbeat (Project Arrhythmia) include Just Shapes & Beats, A Dance of Fire and Ice, Geometry Dash, Rhythm Doctor, and DJMAX RESPECT V. We matched them by the tags players give Afterbeat (Project Arrhythmia) on Steam (Bullet Hell, Music, Rhythm, Local Co-Op, and 4 Player Local): closest matches first, and among equally close ones the better-known games.

Just Shapes & Beats
Shared: Rhythm · Music · Bullet Hell

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

Geometry Dash
Shared: Music · Level Editor · Rhythm

Rhythm Doctor
Shared: Music · Rhythm · Level Editor

DJMAX RESPECT V
Shared: Music · Rhythm · Anime

Muse Dash
Shared: Music · Rhythm · Anime

Cuphead
Shared: Local Co-Op · Bullet Hell · 2D

Intralism
Shared: Music · Rhythm · Level Editor

Enter the Gungeon
Shared: Bullet Hell · Local Co-Op · Difficult

Castle Crashers®
Shared: 2D · 4 Player Local · Local Co-Op

Rift of the NecroDancer
Shared: Music · Rhythm · Level Editor

Vampire Survivors
Shared: Bullet Hell · 2D · Singleplayer

Beat Hazard
Shared: Rhythm · Bullet Hell · Music

Brotato
Shared: Bullet Hell · Local Co-Op · Singleplayer

Beat Saber
Shared: Music · Rhythm · Singleplayer

Hatsune Miku: Project DIVA Mega Mix+
Shared: Rhythm · Music · Anime

BattleBlock Theater®
Shared: Level Editor · Local Co-Op · Co-op

Beatblock
Shared: Music · Rhythm · Level Editor

Overcooked! 2
Shared: Local Co-Op · Multiplayer · 4 Player Local

Broforce
Shared: Local Co-Op · 2D · Co-op

Everhood
Shared: Music · Bullet Hell · Singleplayer

EZ2ON REBOOT : R
Shared: Rhythm · Music · Singleplayer

Touhou Danmaku Kagura Phantasia Lost
Shared: Music · Rhythm · Anime

Overcooked
Shared: Local Co-Op · 4 Player Local · Multiplayer