Underplayed Gems

Deckarium (2025)

Deckarium cover
Developer
xen-42
Platforms
Windows
Genres
Casual
Rating
5.0 of 5, 7 player ratings
Typical playtime
about 3.0 hours
Where to get it
Steam

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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 slow-paced, cute pixel pet simulation where you build a deck to fill a terrarium and manage feeding for passive coin earnings.

casualcuterelaxingincrementalpixelidlemanagementlinear

What players say

Players call this a short, affordable spiritual successor to Insaniquarium that combines creature collecting with card-based resource management. They enjoy the cute frogs and fish but note ghosts and sickness events add challenge.

Screenshots

Deckarium screenshot 1Deckarium screenshot 2Deckarium screenshot 3Deckarium screenshot 4Deckarium screenshot 5Deckarium screenshot 6

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More by xen-42

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.