Games like Zaxoid
Games like Zaxoid include Sektori, Nova Drift, BALL x PIT, Assault Android Cactus+, and Waves. We matched them by the tags players give Zaxoid on Steam (Twin Stick Shooter, Arcade, Shooter, Bullet Hell, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Sektori
Shared: Twin Stick Shooter · Arcade · Shoot 'Em Up

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

BALL x PIT
Shared: Arcade · Bullet Hell · Action

Assault Android Cactus+
Shared: Twin Stick Shooter · Bullet Hell · Shooter

Waves
Shared: Twin Stick Shooter · Bullet Hell · Shooter

Bit Blaster XL
Shared: Bullet Hell · Shooter · Arcade

Nex Machina
Shared: Twin Stick Shooter · Arcade · Bullet Hell

Rogue: Genesia
Shared: Bullet Hell · Arcade · Twin Stick Shooter

Sky Force Reloaded
Shared: Arcade · Shoot 'Em Up · Bullet Hell

Beat Hazard
Shared: Twin Stick Shooter · Bullet Hell · Shoot 'Em Up

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Arcade · Bullet Hell

Chippy
Shared: Twin Stick Shooter · Bullet Hell · Shoot 'Em Up

Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Twin Stick Shooter

Crab Champions
Shared: Arcade · Action Roguelike · 3D

Geometry Wars™ 3: Dimensions Evolved
Shared: Twin Stick Shooter · Arcade · Bullet Hell

Go Mecha Ball
Shared: Twin Stick Shooter · Arcade · Shoot 'Em Up

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Arcade

Ikaruga
Shared: Arcade · Bullet Hell · Shoot 'Em Up

Time Wasters
Shared: Twin Stick Shooter · Bullet Hell · Action Roguelike

Halo: Spartan Assault
Shared: Twin Stick Shooter · Shooter · Action

Dead Estate
Shared: Twin Stick Shooter · Action Roguelike · Bullet Hell

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Action Roguelike · Arcade

Windowkill
Shared: Arcade · Bullet Hell · Twin Stick Shooter