Games like Cozy Sanctuary
Games like Cozy Sanctuary include Tiny Pasture, Chillquarium, Tiny Aquarium: Social Fishkeeping, Rusty's Retirement, and Plantera. We matched them by the tags players give Cozy Sanctuary on Steam (Creature Collector, Idler, Collectathon, Agriculture, and Capitalism): closest matches first, and among equally close ones the better-known games.

Tiny Pasture
Shared: Idler · Creature Collector · Farming Sim

Chillquarium
Shared: Creature Collector · Collectathon · Idler

Tiny Aquarium: Social Fishkeeping
Shared: Creature Collector · Collectathon · Idler

Rusty's Retirement
Shared: Idler · Farming Sim · Management

Plantera
Shared: Idler · Collectathon · Agriculture

Ropuka's Idle Island
Shared: Idler · Building · Relaxing

Stardew Valley
Shared: Farming Sim · Agriculture · Building

Slime Rancher 2
Shared: Creature Collector · Cute · Relaxing

TCG Card Shop Simulator
Shared: Collectathon · Management · Capitalism

Bugtopia
Shared: Idler · Collectathon · Creature Collector

Farm Together
Shared: Agriculture · Building · Farming Sim

Time Is Honey
Shared: Creature Collector · Idler · Collectathon

My Little Life
Shared: Idler · Creature Collector · Collectathon

Placid Plastic Duck Simulator
Shared: Collectathon · Cute · Relaxing

Farming Simulator 22
Shared: Agriculture · Farming Sim · Management

Birdwatching Notebook
Shared: Idler · Creature Collector · Nature

Cookie Clicker
Shared: Idler · Collectathon · Management

Fish to Dish: Idle Sushi
Shared: Idler · Creature Collector · Collectathon

Your Big, Cute Monster Farm
Shared: Idler · Creature Collector · Agriculture

Cornerpond
Shared: Idler · Creature Collector · Simulation

The Ranch of Rivershine
Shared: Agriculture · Farming Sim · 3D

Megaquarium
Shared: Creature Collector · Building · Management

Desk Paws
Shared: Idler · Creature Collector · Collectathon

How to Train Your Cock
Shared: Idler · Building · Management