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Diatoms (2024) is a tile-placement puzzle game where you create a microscopic mosaic from single-cell algae. Your goal is to create a pattern that scores the most at the end of the game based on colours, shapes, and symmetry. It stands out not only for the Victorian algae art but the dual challenge of competing for the best sample spots to gain the algae you need for the best score.

Play is conducted in two stages. You add a Water tile to the shared pond to make a pattern of algae colonies that determines which Diatoms algae you can collect. You then arrange these Diatom pieces onto your own player board into a mosaic of your own design.

Once all the Water tiles have been played, everyone's mosaics are scored and the highest-scoring mosaic wins. Optional additional scoring mechanics in the form of Guest Judges, provide variety from game to game.

The result is a game about cultivating algae ponds to create mosaics of tiny living creatures. The simple mosaic-making of the pond marries perfectly with the intricate diatom designs to create a game that is both approachable and satisfyingly complex.

Our examiner, Sabrina Culyba, first checked Diatoms 9 months ago. It was re-examined by Jo Robertson and updated 11 weeks ago.
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Play StylePlay Style

This is a Collecting, Creative and Puzzle game with Brain Game and Strategy elements. You can play with 1 to 4 players in the same room.

You can play this game in the following styles:


Learn to Play: This takes 15 minutes to learn.

Play Time: This game will take between 30 hours and 45 hours to complete.


This game is good if you want to:

Age RatingsAge Ratings

Skill Level

8+ year-olds usually have the required skill to enjoy this game. Younger players need to be good at visual pattern-matching and planning to play competitively.

Content Rating

We rate this suitable for 3+ years-olds.


There are no additional in-game purchases, loot boxes, adverts or subscription costs.

DetailsGame Details

Release Date: 08/01/2024

Skill Rating: 8+ year-olds

Players: 1-4

Genres: Collecting, Creative, Puzzle (Brain Game and Strategy)

Accessibility: 0 features documented (Tweet Developer )

Components: Board, Cards, Placeables, Score Board and Tokens

Developer: Ludoliminal (@Ludoliminal)

Taming Gaming Book Written by parents for parents, the database complements the in-depth discussion about video game addiction, violence, spending and online safety in the Taming Gaming book. We are an editorially independent, free resource without adverts that is supported by partnerships.

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