A full Sudoku route that can stay with the device in your hand.
The Android edition is the complete Sudoku Cosmos experience: classic progression, five standard worlds, the separate Cipher archive, local player state, optional rewards, language selection, and a player-controlled recovery path. This site will name the official Google Play listing only when it is genuinely public.

What the mobile edition is designed to do.
| Area | Product position | Player meaning |
|---|---|---|
| Core boards | Local-first | Sudoku play and progression are designed to remain useful on device. |
| Languages | Player-controlled | Supported device-language detection, 11 selectable UI languages, and English fallback. |
| Recovery | Player-controlled | Recovery Vault supports deliberate device-change export and restore; it is not cloud sync. |
| Public delivery | Official-store only | No APK is hosted here. The Google Play listing is still shown as coming soon until verified. |
A mobile game should say what is available before a player needs it.
The web sample is useful for checking the core board; it is not a substitute for the Android edition’s larger progression, device settings, audio and haptic choices, local analytics ledger, or Recovery Vault. Keeping the distinction explicit avoids the common mistake of treating a landing page as though it were already an app store record.
- 01Web explains and demonstrates.
Use the browser board for a concise classic 9×9 interaction.
- 02Android carries the full route.
The mobile edition is where extended progression and player settings belong.
- 03The store status stays honest.
Public availability changes only after an official listing can be verified.
Look for continuity, not just a quick board.
Android play is most useful when a puzzle can survive ordinary life: a train tunnel, a battery break, a new phone, or a return a day later. Sudoku Cosmos is designed around local player state so the next move does not depend on a permanent connection or a compulsory profile. Optional connected features, such as rewarded ads when available, remain distinct from the core puzzle.
- 01Progression gives each board a place.
Five 200-board routes move from Easy to Medium, Hard, Killer, and 16×16 Beyond, with a separate Cipher case route beside classic play.
- 02Settings remain player-owned.
World, language, audio, and feedback choices live with the local player state rather than requiring a public identity.
- 03Recovery is deliberate.
The Recovery Vault is a player-controlled device-change workflow, not a claim of invisible cloud synchronization.