Games like Zero Castle
Games like Zero Castle include Vampire Survivors, LUFTRAUSERS, Megabonk, BALL x PIT, and Bit Blaster XL. We matched them by the tags players give Zero Castle on Steam (Action, Arcade, Shooter, Bullet Heaven, and Bullet Hell): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · 2D · Pixel Graphics
LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell
Megabonk
Shared: Bullet Heaven · Action · Bullet Hell
BALL x PIT
Shared: Action · Arcade · Bullet Hell
Bit Blaster XL
Shared: Bullet Hell · Shooter · Arcade
Nova Drift
Shared: Arcade · Bullet Hell · Bullet Heaven
Exit the Gungeon
Shared: Arcade · Action · Bullet Hell
Broforce
Shared: Action · 2D · Pixel Graphics
Halls of Torment
Shared: Bullet Hell · Action · Arcade
Project Wingman
Shared: Action · Flight · Arcade
ZeroRanger
Shared: Action · Bullet Hell · Arcade
Jet Lancer
Shared: Action · Flight · 2D
Boneraiser Minions
Shared: Bullet Hell · Bullet Heaven · 2D
Planes, Bullets and Vodka
Shared: Action · Arcade · Bullet Hell
Death Must Die
Shared: Bullet Hell · Action · Bullet Heaven
Angel at Dusk
Shared: Action · Shooter · Bullet Hell
ACE COMBAT™ 7: SKIES UNKNOWN
Shared: Arcade · Flight · Shooter
DRAINUS
Shared: Action · Shooter · 2D
Commando Collection
Shared: Action · Shooter · Arcade
Star Saviors
Shared: Action · Bullet Hell · Arcade
Ikaruga
Shared: Arcade · Action · Bullet Hell
Warhammer 40,000: Boltgun
Shared: Action · Shooter · Arcade
Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Action
Syder Arcade
Shared: Bullet Heaven · Action · Shooter