Games like My Aquarium
Games like My Aquarium include Tiny Pasture, Cookie Clicker, Stardew Valley, Cornerpond, and Chillquarium. We matched them by the tags players give My Aquarium on Steam (Idler, Incremental, Creature Collector, Pixel Graphics, and Nature): closest matches first, and among equally close ones the better-known games.

Tiny Pasture
Shared: Idler · Incremental · Pixel Graphics

Cookie Clicker
Shared: Idler · Incremental · Pixel Graphics

Stardew Valley
Shared: Pixel Graphics · Life Sim · Relaxing

Cornerpond
Shared: Idler · Incremental · Creature Collector

Chillquarium
Shared: Idler · Creature Collector · Incremental

Shelldiver
Shared: Incremental · Idler · 2D

Tower Wizard
Shared: Idler · Incremental · Pixel Graphics

Digseum
Shared: Incremental · Idler · Pixel Graphics

Cast n Chill
Shared: Idler · Pixel Graphics · Creature Collector

Terraria
Shared: Survival · Pixel Graphics · 2D

(the) Gnorp Apologue
Shared: Idler · Incremental · Building

Nodebuster
Shared: Incremental · Idler · 2D

Click the Button
Shared: Incremental · Idler · Pixel Graphics

Rusty's Retirement
Shared: Idler · Nature · Pixel Graphics

Birdwatching Notebook
Shared: Idler · Creature Collector · Nature

Fantasy Aquarium
Shared: Idler · Incremental · Pixel Graphics

Maltese's Fluffy Onsen
Shared: Pixel Graphics · Idler · 2D

Fortune Mill
Shared: Idler · Incremental · Pixel Graphics

Moonstone Island
Shared: Creature Collector · Pixel Graphics · 2D

Click and Conquer
Shared: Incremental · Idler · Pixel Graphics

Spirit City: Lofi Sessions
Shared: Idler · Creature Collector · Character Customization

Keep on Mining!
Shared: Idler · Incremental · Casual

Ropuka's Idle Island
Shared: Idler · Incremental · Nature

Slime Rancher 2
Shared: Creature Collector · Cute · Relaxing