Games like Orb Breaker
Games like Orb Breaker include BALL x PIT, Nova Drift, Rogue: Genesia, Time Wasters, and Beat Hazard. We matched them by the tags players give Orb Breaker on Steam (Bullet Hell, Bullet Heaven, Shoot 'Em Up, Twin Stick Shooter, and Mining): closest matches first, and among equally close ones the better-known games.
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Bullet Heaven
Rogue: Genesia
Shared: Bullet Hell · Bullet Heaven · Twin Stick Shooter
Time Wasters
Shared: Bullet Heaven · Bullet Hell · Twin Stick Shooter
Beat Hazard
Shared: Bullet Hell · Twin Stick Shooter · Shoot 'Em Up
Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Megabonk
Shared: Bullet Heaven · Bullet Hell · Action
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Vampire Survivors
Shared: Bullet Hell · 2D · Arcade
Cyberhunt
Shared: Shoot 'Em Up · Twin Stick Shooter · Action
Waves
Shared: Bullet Hell · Shoot 'Em Up · Twin Stick Shooter
20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Combat
Chippy
Shared: Bullet Hell · Twin Stick Shooter · Shoot 'Em Up
Minishoot' Adventures
Shared: Bullet Hell · Twin Stick Shooter · Top-Down
Windowkill
Shared: Bullet Hell · Twin Stick Shooter · Arcade
Geometry Wars: Retro Evolved
Shared: Twin Stick Shooter · Bullet Hell · Arcade
LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Nex Machina
Shared: Bullet Hell · Twin Stick Shooter · Shoot 'Em Up
Deep Rock Galactic: Survivor
Shared: Bullet Heaven · Bullet Hell · Top-Down
Sky Force Reloaded
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Halls of Torment
Shared: Bullet Hell · Bullet Heaven · Arcade
Boneraiser Minions
Shared: Bullet Hell · Bullet Heaven · 2D
Enter the Gungeon
Shared: Bullet Hell · Twin Stick Shooter · 2D
Super Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Arcade