500 Hidoku games that can be played in any order. The games start small but get larger as you progress. Though challenging none are frustratingly difficult and each has a single solution.

Game 1 acts as a tutorial game in case you're new to Hidoku.

An innovative method for number entry dispenses with the traditional keypad and makes playing each game a more enjoyable experience.

And there are undo/redo, path display and progress check buttons to help you further.

All game progress is saved automatically.