Games like Karous
Games like Karous include Bit Blaster XL, Nova Drift, BALL x PIT, Planes, Bullets and Vodka, and LUFTRAUSERS. We matched them by the tags players give Karous on Steam (Shoot 'Em Up, Bullet Hell, Shooter, Arcade, and 2D): closest matches first, and among equally close ones the better-known games.
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Arcade
BALL x PIT
Shared: Bullet Hell · Arcade · Action
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Action
LUFTRAUSERS
Shared: Bullet Hell · Arcade · Shoot 'Em Up
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Vampire Survivors
Shared: Bullet Hell · 2D · Singleplayer
Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Mushihimesama
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Star Saviors
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Shooter
DRAINUS
Shared: Shoot 'Em Up · Shooter · Action
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Shoot 'Em Up · Bullet Hell · Shooter
METAL SLUG
Shared: Arcade · Shoot 'Em Up · Action
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Exit the Gungeon
Shared: Arcade · Bullet Hell · Action
Beat Hazard
Shared: Bullet Hell · Shoot 'Em Up · 2D
Sine Mora
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Geometry Wars: Retro Evolved
Shared: Arcade · Bullet Hell · Shoot 'Em Up
Waves
Shared: Shoot 'Em Up · Bullet Hell · Shooter