How long is a round of Calcu Doku?

A single stage usually takes one to three minutes. There is no fixed session length, so you stop when you want to.

Is a mouse better than touch for this?

They are about equal. Casual games are designed for touch first, but mouse clicks map to the same actions on desktop.

What happens if I lose a stage?

You simply try it again. There are no lives to run out in most casual games, and nothing you have done so far is lost.

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Random game

Browser game · Casual

Calcu Doku

CalcuDoku is a HTML5 game where you have to fill in the grid so that every row and every column.

4.3

Play now — it's free

Runs in your browser · no download

Category: Casual
Score: 4.3
Device: Mobile + Desktop
Access: Free Play
Controls: Mouse + Keyboard
Type: HTML5 Game

The guide

Overview

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.

What it's like to play

Open it, tap, and you are in. A casual game does not ask you to read a manual or remember a control scheme. The first stage shows a hand pointing at something; you tap it; a pleasant chime plays. From there each stage adds a small twist. Sessions are easy to begin and easy to end, and both of those things matter more than they sound.

How to play

1Follow the pointing hand or glowing object on the first stage. That is the game teaching you its one core action.
2Tap, click or swipe to interact. If something highlights when you hover or touch it, it probably does something.
3Watch for a target shown at the top of the stage and work toward it in the fewest moves you can manage.
4Use boosters or hints freely. Most stages are designed with them in mind.

Features

Free to play, nothing to install, no account needed
Loads in the browser tab and opens full screen when you press Play
Plays best with the phone turned sideways or on a wider screen
Mouse and keyboard controls, with touch support on most devices
Listed under Casual

Why it's worth a go

It is relaxing in a way few things on a screen are. Calcu Doku loads in the browser with no download and no account, it makes no demands, and every few minutes it gives you a small win. For a free game, that is a good trade.

Who it's for

Suits adults who want to unwind and kids who want something colorful and simple. Also good for people who only ever play on a phone and never think of themselves as players.

FAQs

How long is a round of Calcu Doku?: A single stage usually takes one to three minutes. There is no fixed session length, so you stop when you want to.
Is a mouse better than touch for this?: They are about equal. Casual games are designed for touch first, but mouse clicks map to the same actions on desktop.
What happens if I lose a stage?: You simply try it again. There are no lives to run out in most casual games, and nothing you have done so far is lost.