Games like The Magus Circle
Games like The Magus Circle include Vampire Survivors, Skul: The Hero Slayer, Megabonk, Death Must Die, and Halls of Torment. We matched them by the tags players give The Magus Circle on Steam (Action, Roguelike, Action Roguelike, Bullet Hell, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Skul: The Hero Slayer
Shared: Action · Action Roguelike · Roguelike

Megabonk
Shared: Roguelike · Action Roguelike · Roguelite

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

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

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

BALL x PIT
Shared: Action · Roguelike · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Action

Nuclear Throne
Shared: Roguelike · Action Roguelike · Action

The Binding of Isaac: Rebirth
Shared: Roguelike · Action Roguelike · Indie

Hades II
Shared: Action · Roguelike · Roguelite

Dungreed
Shared: Action Roguelike · Roguelike · Action

Dead Cells
Shared: Roguelike · Action Roguelike · 2D

Realm of the Mad God Exalt
Shared: Roguelike · Bullet Hell · Pixel Graphics

Rogue Legacy
Shared: Roguelike · Action · Action Roguelike

Sephiria
Shared: Action Roguelike · Roguelike · Roguelite

Wizard of Legend
Shared: Action Roguelike · Roguelike · Action

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

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Risk of Rain (2013)
Shared: Roguelike · Action Roguelike · Action

Seraph's Last Stand
Shared: Action Roguelike · Bullet Hell · Roguelike

Atomicrops
Shared: Action · Roguelike · Bullet Hell

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