Sudoku boards
Five 200-board routes: Easy, Medium, Hard, Killer, and Beyond.
Sudoku Cosmos for Android
The full library, designed to stay with the player.
Sudoku Cosmos on Android is the complete game: 1,000 boards across five progression tiers, five standard worlds, the Cipher archive, local progress, and a player-controlled Recovery Vault device-change path. The public Google Play listing is being prepared; no install file is distributed from this website.
Capability boundary
The offline claim, stated precisely.
The Android product is offline-first for core play. The browser demo is a separate web experience and does not claim offline play.
| Capability | Android status | What the boundary means |
|---|---|---|
| Core Sudoku play | Designed local | Boards, play state, and core progression are designed to remain useful on device. |
| World and player settings | Designed local | Presentation and preferences are stored with the player state. |
| Recovery Vault | Player controlled | Encrypted device-change export uses a PIN and a separate recovery key; it is not cloud sync. |
| Optional rewarded ads | Connection dependent | Rewards require an available network ad. Core puzzle play is not an ad gate. |
| Updates and new delivery | Store delivery | Public install and updates will be delivered through the official store listing when it is available. |
| Website browser sample | Online web page | This website provides a small demonstration; it does not claim the full offline Android experience. |
Standard worlds
Nariman Number Nebula, Neon Circuit, Stone Age Sigils, Ocean Pulse, and Zen Bloom.
Cipher episodes
A separate fictional detective-puzzle route with case-specific evidence cabinets.
Required in-game accounts
Core play is designed without a mandatory user account.
Store statusOfficial stores only.
Official stores only.
No direct install files.
The public Google Play listing and iOS edition are not available yet. This website will link only to verified official Google Play and Apple App Store listings when they exist; it does not host, distribute, or link to an APK.
Google PlayComing soonPublic Android listing in preparation◌Apple App StoreComing soonNo public iOS listing yet◌WebPlay the browser sample nowClassic 9×9 demonstration · no account↗
One acquisition path
Keep playing on web →Learn on the web. Continue through the official stores when ready.
Every learning page, world, and Cipher file leads to transparent store status. There is no fake checkout and no direct installation route.