Games like Galaxy Critter Co.
Games like Galaxy Critter Co. include Cult of the Lamb, Brotato, Cluckmech Oasis, Vampire Survivors, and Hades. We matched them by the tags players give Galaxy Critter Co. on Steam (Action Roguelike, Tower Defense, Cute, Singleplayer, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Cult of the Lamb
Shared: Action Roguelike · Cute · Base Building

Brotato
Shared: Action Roguelike · Singleplayer · Roguelike

Cluckmech Oasis
Shared: Tower Defense · Roguelike · Cute

Vampire Survivors
Shared: Action Roguelike · Singleplayer · Roguelike

Hades
Shared: Action Roguelike · Singleplayer · Roguelike

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Singleplayer · Strategy

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

Oxygen Not Included
Shared: Base Building · Singleplayer · Building

Bloons TD 6
Shared: Tower Defense · Singleplayer · Strategy

BALL x PIT
Shared: Action Roguelike · Roguelike · Top-Down Shooter

Megabonk
Shared: Action Roguelike · Roguelike · Singleplayer

Kingdom Two Crowns
Shared: Tower Defense · Singleplayer · Base Building

Rogue Legacy
Shared: Action Roguelike · Roguelike · Singleplayer

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Singleplayer

Sephiria
Shared: Action Roguelike · Roguelike · Cute

Thronefall
Shared: Tower Defense · Strategy · Base Building

Rogue Tower
Shared: Tower Defense · Roguelike · Strategy

RimWorld
Shared: Base Building · Singleplayer · Strategy

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Singleplayer · Strategy

Kingdom Rush - Tower Defense
Shared: Tower Defense · Singleplayer · Strategy

Yet Another Zombie Survivors
Shared: Action Roguelike · Top-Down Shooter · Singleplayer

FTL: Faster Than Light
Shared: Roguelike · Singleplayer · Strategy

Kingdom Rush Frontiers - Tower Defense
Shared: Tower Defense · Singleplayer · Strategy