Nervous Hippo

Casual mobile games with a twist.

Introducing Tetdoku

A relaxing yet challenging puzzle game that combines block placement with the strategy of Sudoku. Drag and drop blocks, clear lines and squares, and aim for the highest score!

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Easy to learn, hard to master

Simple mechanics that anyone can pick up, with depth that keeps you coming back.

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Relaxing design with endless replayability

Soothing visuals and satisfying gameplay that you can enjoy anytime, anywhere.

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Available free on iOS and Android

Download now and start playing immediately - no barriers, just fun.

More Games Coming Soon