Games like Pulsar
Games like Pulsar include Beat Saber, Metal: Hellsinger, AudioSurf, A Dance of Fire and Ice, and Beat Hazard. We matched them by the tags players give Pulsar on Steam (Rhythm, Procedural Generation, Music, Music-Based Procedural Generation, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Beat Saber
Shared: VR · Rhythm · Music

Metal: Hellsinger
Shared: Rhythm · Music · Shooter

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

A Dance of Fire and Ice
Shared: Rhythm · Music · Singleplayer

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

Pistol Whip
Shared: VR · Rhythm · Shooter

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

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

Half-Life: Alyx
Shared: VR · Shooter · Singleplayer

Geometry Dash
Shared: Music · Rhythm · Singleplayer

Symphony
Shared: Music · Rhythm · Shoot 'Em Up

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

Muse Dash
Shared: Rhythm · Music · Singleplayer

Sayonara Wild Hearts
Shared: Rhythm · Music · Action

Thumper
Shared: Rhythm · VR · Music

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

BPM: BULLETS PER MINUTE
Shared: Rhythm · Shooter · Music

Hatsune Miku: Project DIVA Mega Mix+
Shared: Rhythm · Music · 3D

DJMAX RESPECT V
Shared: Rhythm · Music · Singleplayer

Audioshield
Shared: VR · Music · Rhythm

Rhythm Doctor
Shared: Rhythm · Music · Singleplayer

Pavlov
Shared: VR · Shooter · Action

Hi-Fi RUSH
Shared: Rhythm · Music · Singleplayer

Melatonin
Shared: Rhythm · Music · Indie