Underplayed Gems

Zen Aquarium (2025)

Zen Aquarium cover
Developer
Astro Cat
Platforms
Windows, macOS
Genres
Simulation
Rating
4.7 of 5, 300 player ratings
Typical playtime
about 17 hours
Where to get it
Steam
The 3D catalog: game boxes on wooden shelves, with the cat sitting at the counter next to its greeting.

The catalog in 3D

The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.

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How it feels

A calm, idyllic screensaver-like experience where you simply watch a serene underwater world drift by with no pressure or complexity.

serenerelaxingchillidleatmosphericcozymeditativepeaceful

What players say

Players use this as a desktop decoration or sleep aid, not a game with objectives. They appreciate the beautiful visuals, ambient sounds like rain and cat purring, and music, but note it has minimal interactivity, you cannot choose or decorate fish. Some long-term players complain development stalled and widescreen support is missing.

More games like this

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.