Mattis Blog

Stories, updates, design notes, and guides from the team behind Mattis.

Published: May 2, 2026

Skitgubbe, Mattis, and Myllymatti: The Same Card-Game Family With Different Local Names

Skitgubbe, Mattis, and Myllymatti share the same two-phase card-game family: collect cards, then get rid of them before you are last.

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Published: February 19, 2026

How We Designed Mattis AI Difficulty Levels and a Hint Button That Plays Like a Human (Sometimes Better)

We explain how AI levels in Mattis differ in practice, why the hint button uses the same game logic, and how this creates fairer, more human-like play.

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Mattis rules

Collection, War, trumps, Rows and shedding, step by step.

Read the complete rules

Mattis strategy

The decisions that keep you from becoming the Mattis.

See tactics and winning tips

Mattis FAQ

Platforms, price, playing with friends, and the game's other names.

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Don't be the Mattis.

Download the free Mattis card game for iPhone and Android. Play online with friends, or practice solo against AI.

Get Mattis free

Free to download. iPhone and Android.