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Calcu Doku

Played with the mouse and arrow keys on desktop in landscape view, this is a logic puzzle that blends the rules of Sudoku with arithmetic. Each row and column must contain the correct digits, while every outlined cage must match the number and operator shown. With only one valid solution per grid, it runs entirely in the browser with no installation needed.

Calcu Doku — play free online

About this game

CalcuDoku is a HTML5 game where you have to fill in the grid so that every row and every column contains the digits. Each box must also be calculated according to number and operator, there is only 1 solution for each puzzle.

How to play

Arrows Click Mouse

Questions people ask

Can I play Calcu Doku online for free?
Yes. Open Calcu Doku in this browser and press Play. There is no download or account required.
Do I need to install Calcu Doku?
No. The game runs inside the browser page, so there is nothing to install.
Does Calcu Doku work on mobile?
This game does not list touch controls. For the best experience, use a keyboard and mouse.