Games like Cat Watch
Games like Cat Watch include Vampire Survivors, BALL x PIT, Nuclear Throne, Megabonk, and Enter the Gungeon. We matched them by the tags players give Cat Watch on Steam (Action Roguelike, Bullet Hell, Top-Down Shooter, Action, and Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Casual

BALL x PIT
Shared: Action · Bullet Hell · Action Roguelike

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Action

Megabonk
Shared: Action Roguelike · Bullet Hell · Action

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Roguelike

Skul: The Hero Slayer
Shared: Action Roguelike · Action · Roguelike

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · Platformer

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Action

Crab Champions
Shared: Action Roguelike · Bullet Hell · Arcade

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Casual

Death Must Die
Shared: Action Roguelike · Bullet Hell · Action

Blazing Beaks
Shared: Action Roguelike · Top-Down Shooter · Action

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

Rogue Legacy
Shared: Action Roguelike · Platformer · Action

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Spelunky
Shared: Action Roguelike · Platformer · Roguelike

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Risk of Rain (2013)
Shared: Action Roguelike · Action · Platformer

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Casual

Nova Drift
Shared: Bullet Hell · Action Roguelike · Arcade

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Pathogenic
Shared: Bullet Hell · Top-Down Shooter · Action Roguelike

Downwell
Shared: Action Roguelike · Platformer · Action

Dead Cells
Shared: Action Roguelike · Roguelike · 2D