Games like Cowboy and Zombies
Games like Cowboy and Zombies include Vampire Survivors, Planes, Bullets and Vodka, Megabonk, BALL x PIT, and 20 Minutes Till Dawn. We matched them by the tags players give Cowboy and Zombies on Steam (Action, Bullet Hell, Singleplayer, Combat, and Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Singleplayer · Action

Planes, Bullets and Vodka
Shared: Action · Bullet Hell · Retro

Megabonk
Shared: Bullet Hell · Action · Singleplayer

BALL x PIT
Shared: Action · Bullet Hell · Arcade

20 Minutes Till Dawn
Shared: Bullet Hell · Survival · Combat

LUFTRAUSERS
Shared: Bullet Hell · Action · Arcade

Battlefield™ 6
Shared: Singleplayer · Action · Shooter

Brotato
Shared: Bullet Hell · Singleplayer · Survival

Bit Blaster XL
Shared: Bullet Hell · Shooter · Action

Resident Evil 4
Shared: Action · Singleplayer · Survival

Battlefield™ 2042
Shared: Singleplayer · Shooter · Action

Left 4 Dead 2
Shared: Action · Shooter · Survival

Rocket Rats
Shared: Bullet Hell · Action · Singleplayer

Exit the Gungeon
Shared: Action · Bullet Hell · Arcade

Geometry Wars: Retro Evolved
Shared: Bullet Hell · Arcade · Singleplayer

METAL SLUG
Shared: Action · Arcade · 2D

Commando Collection
Shared: Action · Bullet Hell · Shooter

METAL SLUG 3
Shared: Action · Arcade · Retro

Nova Drift
Shared: Bullet Hell · Arcade · Shooter

STAR WARS™ Battlefront™ II
Shared: Singleplayer · Shooter · Action

DRAINUS
Shared: Action · Singleplayer · Shooter

Boneraiser Minions
Shared: Bullet Hell · Singleplayer · 2D

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · Survival

Titanfall® 2
Shared: Singleplayer · Action · Shooter