Games like KAIKAN
Games like KAIKAN include Planes, Bullets and Vodka, BALL x PIT, Bit Blaster XL, LUFTRAUSERS, and Sky Force Reloaded. We matched them by the tags players give KAIKAN on Steam (Shoot 'Em Up, Shooter, 2D, Destruction, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Action · Shooter

BALL x PIT
Shared: Action · Shoot 'Em Up · Arcade

Bit Blaster XL
Shared: Shoot 'Em Up · Shooter · 2D

LUFTRAUSERS
Shared: Shoot 'Em Up · 2D · Action

Sky Force Reloaded
Shared: Shoot 'Em Up · Top-Down Shooter · Arcade

Vampire Survivors
Shared: 2D · Bullet Hell · Pixel Graphics

ZeroRanger
Shared: Shoot 'Em Up · Action · 2D

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Shooter · Top-Down Shooter

Nova Drift
Shared: Shoot 'Em Up · Shooter · Arcade

Hotline Miami
Shared: Action · Indie · Pixel Graphics

Revolution Ace
Shared: Shoot 'Em Up · Shooter · Action

DRAINUS
Shared: Shoot 'Em Up · Shooter · Action

Chippy
Shared: Shoot 'Em Up · Top-Down Shooter · Shooter

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Indie

BLUE REVOLVER
Shared: Shoot 'Em Up · Action · 2D

DEVIL BLADE REBOOT
Shared: Shoot 'Em Up · Shooter · Action

Broforce
Shared: 2D · Action · Shooter

Cyberhunt
Shared: Shoot 'Em Up · Action · Indie

Huntdown
Shared: Shooter · Shoot 'Em Up · Action

Exit the Gungeon
Shared: Action · Arcade · 2D

Ikaruga
Shared: Shoot 'Em Up · Shooter · Action

Touhou Kinjoukyou ~ Fossilized Wonders.
Shared: Shoot 'Em Up · Shooter · Action

Star Saviors
Shared: Shoot 'Em Up · Action · 2D

Bot Vice
Shared: Shoot 'Em Up · Top-Down Shooter · Shooter