Games like Poly Magic
Games like Poly Magic include Megabonk, Vampire Survivors, The Spell Brigade, Death Must Die, and Soulstone Survivors. We matched them by the tags players give Poly Magic on Steam (Casual, Action, Roguelike, Action Roguelike, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Roguelike · Action Roguelike · Bullet Heaven

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

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

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

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

Hades
Shared: Action Roguelike · Action · Roguelite

BALL x PIT
Shared: Action · Roguelike · Bullet Hell

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

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

Risk of Rain 2
Shared: Action Roguelike · Roguelike · Action

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Hades II
Shared: Action · Roguelike · Action Roguelike

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Bullet Heaven · Casual

Noobs Want to Live
Shared: Roguelike · Action · Bullet Hell

Nuclear Throne
Shared: Roguelike · Action Roguelike · Action

Ravenswatch
Shared: Roguelike · Action Roguelike · Action

Arms of God
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Magicraft
Shared: Action Roguelike · Roguelike · Bullet Hell

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

Astro Prospector
Shared: Casual · Roguelike · Action Roguelike

Atomicrops
Shared: Action · Roguelike · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite