Games like Usurper
Games like Usurper include Nova Drift, Bit Blaster XL, Deep Rock Galactic: Survivor, BALL x PIT, and Geometry Arena. We matched them by the tags players give Usurper on Steam (Arena Shooter, Bullet Heaven, Incremental, Minimalist, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.
Nova Drift
Shared: Shoot 'Em Up · Arena Shooter · Bullet Heaven
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Deep Rock Galactic: Survivor
Shared: Bullet Heaven · Arena Shooter · Top-Down Shooter
BALL x PIT
Shared: Arcade · Shoot 'Em Up · Bullet Hell
Geometry Arena
Shared: Arena Shooter · Bullet Heaven · Minimalist
Time Wasters
Shared: Bullet Heaven · Arena Shooter · Shoot 'Em Up
Brotato
Shared: Bullet Heaven · Arena Shooter · Bullet Hell
Planes, Bullets and Vodka
Shared: Casual · Shoot 'Em Up · Arcade
Chippy
Shared: Arena Shooter · Shoot 'Em Up · Bullet Hell
SNKRX
Shared: Arena Shooter · Shoot 'Em Up · Top-Down Shooter
Cyberhunt
Shared: Casual · Shoot 'Em Up · Arcade
Megabonk
Shared: Bullet Heaven · Bullet Hell · Indie
20 Minutes Till Dawn
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Astro Prospector
Shared: Incremental · Casual · Bullet Heaven
Arms of God
Shared: Bullet Heaven · Arena Shooter · Top-Down Shooter
State of Anarchy: Master of Mayhem
Shared: Arena Shooter · Top-Down Shooter · Shoot 'Em Up
Sky Force Reloaded
Shared: Shoot 'Em Up · Arcade · Top-Down Shooter
LUFTRAUSERS
Shared: Arcade · Bullet Hell · Shoot 'Em Up
Nodebuster
Shared: Incremental · Casual · Arcade
Just Click The Button
Shared: Arena Shooter · Incremental · Top-Down Shooter
Titan Attacks!
Shared: Arena Shooter · Shoot 'Em Up · Bullet Hell
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Arcade
Yet Another Zombie Survivors
Shared: Bullet Heaven · Top-Down Shooter · Arcade
Timberman
Shared: Casual · Arcade · Incremental