Games like Cosmic Slime Defense
Games like Cosmic Slime Defense include Celeste, Downwell, Broforce, Super Meat Boy, and Katana ZERO. We matched them by the tags players give Cosmic Slime Defense on Steam (Action, Casual, Platformer, 2D Platformer, and Point & Click): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Downwell
Shared: Platformer · Action · Pixel Graphics

Broforce
Shared: Action · Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · 2D Platformer · Precision Platformer

Katana ZERO
Shared: Action · Platformer · Pixel Graphics

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

Sonic Origins
Shared: Action · 2D Platformer · Platformer

Twin Shot Deluxe
Shared: Action · Casual · 2D Platformer

VVVVVV
Shared: Platformer · 2D Platformer · Pixel Graphics

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Huntdown
Shared: Action · Shooter · Pixel Graphics

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

pureya
Shared: Casual · 2D · Arcade

Timberman
Shared: Casual · Action · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Platformer

Planes, Bullets and Vodka
Shared: Action · Casual · Shooter

Geometry Dash
Shared: 2D · Platformer · Precision Platformer

Gravity Circuit
Shared: Action · Platformer · 2D Platformer

Sonic Superstars
Shared: Action · Platformer · 2D Platformer

Defy Gravity Extended
Shared: Platformer · Action · 2D

Webbed
Shared: 2D Platformer · Platformer · Pixel Graphics

Bit Blaster XL
Shared: Action · Shooter · Casual

Sonic Mania
Shared: Platformer · 2D · Action

Gensokyo Night Festival
Shared: Action · Casual · Pixel Graphics