Games like Polycar Blitz
Games like Polycar Blitz include Vampire Survivors, BALL x PIT, Halls of Torment, Megabonk, and Nuclear Throne. We matched them by the tags players give Polycar Blitz on Steam (Action Roguelike, Bullet Hell, Top-Down Shooter, Action, and 3D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelike

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike

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

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

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Yet Another Zombie Survivors
Shared: Action Roguelike · Top-Down Shooter · Arcade

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

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

Goobies
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Hades
Shared: Action Roguelike · Action · Roguelite

Blazing Beaks
Shared: Action Roguelike · Top-Down Shooter · Action

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Action Roguelike · Action

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Crab Champions
Shared: Action Roguelike · Arcade · Bullet Hell

Magicraft
Shared: Action Roguelike · Bullet Hell · RPG

Nova Drift
Shared: Bullet Hell · Action Roguelike · Arcade

Hero Siege
Shared: Action Roguelike · RPG · Pixel Graphics

Hades II
Shared: Action · Action Roguelike · Roguelike

Army of Ruin
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

