Games like SoundStorm
Games like SoundStorm include A Dance of Fire and Ice, Beat Hazard, Sky Force Reloaded, Waves, and Nova Drift. We matched them by the tags players give SoundStorm on Steam (Rhythm, Shoot 'Em Up, Psychedelic, Hand-drawn, and Score Attack): closest matches first, and among equally close ones the better-known games.
A Dance of Fire and Ice
Shared: Rhythm · Psychedelic · Arcade
Beat Hazard
Shared: Rhythm · Shoot 'Em Up · Bullet Hell
Sky Force Reloaded
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell
Waves
Shared: Shoot 'Em Up · Bullet Hell · Bullet Time
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter
BALL x PIT
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Melatonin
Shared: Rhythm · Hand-drawn · Indie
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Shooter
LUFTRAUSERS
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Chippy
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Super Hexagon
Shared: Rhythm · Score Attack · Arcade
Beat Hazard 2
Shared: Rhythm · Top-Down Shooter · Shoot 'Em Up
Pistol Whip
Shared: Rhythm · Shooter · Arcade
Bot Vice
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell
Angel at Dusk
Shared: Psychedelic · Bullet Hell · Hand-drawn
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Shooter
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Indie
Just Shapes & Beats
Shared: Rhythm · Bullet Hell · 2D
WOWOWOW KORONE BOX
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Arcade
12 is Better Than 6
Shared: Hand-drawn · Top-Down Shooter · Shooter
Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter