Stardust Sudoku – the thoughtful Sudoku built as one endless run

Sudoku that keeps going

Almost everyone knows the rules – but here they become a single, endless run that raises the stakes board by board.

Start playing right away

Pick a cell, tap a number – done. There's nothing to learn and no tutorial to click through. A notes mode helps you keep track of candidate numbers, and three hints per board are there for you whenever you get stuck.

One run, ever deeper

Solve a board and a harder one follows – from Easy through Medium and Hard up to Expert. You start with three hearts: every wrong number costs one, and a flawlessly solved board earns one back. When your hearts run out, the run ends.

Easy to learn, with genuine tension – it's exactly this mix that turns "just one more board" into a whole gaming session.

Collect, unlock, keep at it

Every solved board moves you forward: stardust to spend, achievements to unlock and stats that record just how far you've come.

Stardust for new looks

With every board you collect stardust and spend it in the Customize menu on six color palettes, four grid styles and four numeral sets – all of them earned through play, none of them bought with real money.

20 achievements to unlock

From your first solved board through deep runs to flawless solves: 20 achievements mark your milestones, and each one awards extra stardust.

Best scores and stats

Best score, deepest run, flawless and hint-free boards, fastest board – your numbers are kept on record, and your best run is always there to beat.

Considered down to the detail

Stardust Sudoku is deliberately minimalist, but carefully made – with automatic saving, a clean look and sound generated entirely on your device.

Saved automatically

Your progress is backed up automatically. So you can pause any time and pick up exactly where you left off – without losing a single run.

Light or dark

Choose a light (Paper) or dark (Ink) look and switch between English and German any time. Both settings are kept between sessions.

Sound without any files

Every sound is generated right on your device – the app contains no audio files. A soft tone for each number you place, a cue for mistakes and a short melody when a board is solved, plus optional, understated background music. Sound and music can each be toggled on or off.

Fully offline and private

Stardust Sudoku works completely offline, and everything stays local on your device. No ads, no in-app purchases, no data collection.

That keeps the focus where it belongs: on the next number.

The verdict: a Sudoku that pulls you in

Stardust Sudoku pairs a timeless number puzzle with a fresh idea – an endless run that draws you deeper board by board. It's completely free, works fully offline and comes with no ads, no in-app purchases and no pay-to-win – your skill alone decides how far you go. Available in English and German, with a light and dark look, unlockable looks and sound generated entirely on your device. Download Stardust Sudoku from Google Play now and find out how deep you can get.