Games like Cat Girl Survivor
Games like Cat Girl Survivor include Vampire Survivors, Megabonk, Halls of Torment, Death Must Die, and Skul: The Hero Slayer. We matched them by the tags players give Cat Girl Survivor on Steam (Action Roguelike, Bullet Hell, Roguelite, Pixel Graphics, and Indie): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

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

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

Skul: The Hero Slayer
Shared: Action Roguelike · Indie · Pixel Graphics

Brotato
Shared: Bullet Hell · Action Roguelike · Singleplayer

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Indie · Pixel Graphics

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Indie

Dungreed
Shared: Action Roguelike · Pixel Graphics · Roguelite

Nuclear Throne
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Rogue Legacy
Shared: Action Roguelike · Indie · 2D

Dead Cells
Shared: Action Roguelike · Pixel Graphics · Roguelite

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Noobs Want to Live
Shared: Bullet Hell · Pixel Graphics · Action Roguelike

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

UnderMine
Shared: Action Roguelike · Roguelite · Pixel Graphics

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Indie

Asgard's Fall — Viking Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelite

Seraph's Last Stand
Shared: Action Roguelike · Bullet Hell · Pixel Graphics