Games like Rhythm Witch: Beat Death
Games like Rhythm Witch: Beat Death include Megabonk, Vampire Survivors, 20 Minutes Till Dawn, Death Must Die, and Soulstone Survivors. We matched them by the tags players give Rhythm Witch: Beat Death on Steam (Rhythm, Bullet Heaven, Bullet Hell, Action Roguelike, and Cute): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

20 Minutes Till Dawn
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up

Death Must Die
Shared: Bullet Hell · Action Roguelike · Bullet Heaven

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

BALL x PIT
Shared: Bullet Hell · Action Roguelike · Action

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Brotato
Shared: Bullet Hell · Action Roguelike · Bullet Heaven

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Bullet Heaven

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Action Roguelike

Muse Dash
Shared: Rhythm · Cute · Female Protagonist

Time Wasters
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

The Void Rains Upon Her Heart
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Zombies

Deep Rock Galactic: Survivor
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Tower of Babel: Survivors of Chaos
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

Atomicrops
Shared: Bullet Hell · Action Roguelike · Action

Rabi-Ribi
Shared: Bullet Hell · Female Protagonist · Cute

Rabbit and Steel
Shared: Bullet Hell · Action Roguelike · Cute

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Female Protagonist · Shoot 'Em Up

Picayune Dreams
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

Last Command
Shared: Bullet Hell · Cute · Female Protagonist