Games like Iron Bird
Games like Iron Bird include Vampire Survivors, BALL x PIT, Nuclear Throne, 20 Minutes Till Dawn, and Nova Drift. We matched them by the tags players give Iron Bird on Steam (Bullet Hell, Shoot 'Em Up, Roguelite, Pixel Graphics, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Roguelite · Pixel Graphics

BALL x PIT
Shared: Roguelite · Bullet Hell · Action

Nuclear Throne
Shared: Pixel Graphics · Bullet Hell · Indie

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

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Star of Providence
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

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

Megabonk
Shared: Roguelite · Bullet Hell · Indie

Halls of Torment
Shared: Bullet Hell · Roguelite · Pixel Graphics

Skul: The Hero Slayer
Shared: Pixel Graphics · Action · Indie

Death Must Die
Shared: Bullet Hell · Roguelite · Pixel Graphics

Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Shooter

Voidigo
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

I Am Legion: Stand Survivors
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Rocket Rats
Shared: Bullet Hell · Pixel Graphics · Roguelite

LUFTRAUSERS
Shared: Bullet Hell · Indie · Pixel Graphics

Atomicrops
Shared: Bullet Hell · Action · Pixel Graphics

Greedland
Shared: Shoot 'Em Up · Roguelite · Bullet Hell

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

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

Blazing Beaks
Shared: Roguelite · Pixel Graphics · Top-Down Shooter

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

Dungreed
Shared: Pixel Graphics · Roguelite · Action

