The Ninth Key
Contains adsIn-app purchases
Everyone
info
10+
Downloads
About this game
Discover a story hidden inside every sudoku puzzle.
The Ninth Key is a story-driven sudoku puzzle game. Solve classic 6×6 sudoku puzzles, and the letters revealed in the golden cells slowly unlock a hand-written story of curiosity, forgotten wisdom, and a valley waiting to wake up.
WHAT MAKES THIS SUDOKU GAME DIFFERENT
Every puzzle you solve isn't just a win — it's a piece of a story. Follow Elin, a young cartographer's apprentice, as she climbs a misty mountain, discovers a hidden valley, and searches for four ancient keys that only the truly curious can find.
FEATURES
- 1,073 handcrafted sudoku puzzles across 10 story chapters
- A full story that unfolds word by word as you solve each puzzle
- Anagram word puzzles and collectible badges along the way
- Bonus 9×9 sudoku puzzles for classic sudoku fans
- Track your progress, puzzle-solving times, and achievements
- Three visual themes, plus automatic system theme matching
- Available in English, Turkish, German, French, Spanish, Portuguese, and Japanese
WHO THIS PUZZLE GAME IS FOR
If you love sudoku but want more than just numbers on a grid — if you're the kind of person who reads the little plaque next to a museum exhibit, who wonders why the sky is blue, who finishes a book in one sitting — this sudoku adventure was made for you.
Recommended for players aged 13 and up, as the story and sudoku difficulty grow more demanding as you progress.
Start your sudoku puzzle adventure. The mountain is waiting.
The Ninth Key is a story-driven sudoku puzzle game. Solve classic 6×6 sudoku puzzles, and the letters revealed in the golden cells slowly unlock a hand-written story of curiosity, forgotten wisdom, and a valley waiting to wake up.
WHAT MAKES THIS SUDOKU GAME DIFFERENT
Every puzzle you solve isn't just a win — it's a piece of a story. Follow Elin, a young cartographer's apprentice, as she climbs a misty mountain, discovers a hidden valley, and searches for four ancient keys that only the truly curious can find.
FEATURES
- 1,073 handcrafted sudoku puzzles across 10 story chapters
- A full story that unfolds word by word as you solve each puzzle
- Anagram word puzzles and collectible badges along the way
- Bonus 9×9 sudoku puzzles for classic sudoku fans
- Track your progress, puzzle-solving times, and achievements
- Three visual themes, plus automatic system theme matching
- Available in English, Turkish, German, French, Spanish, Portuguese, and Japanese
WHO THIS PUZZLE GAME IS FOR
If you love sudoku but want more than just numbers on a grid — if you're the kind of person who reads the little plaque next to a museum exhibit, who wonders why the sky is blue, who finishes a book in one sitting — this sudoku adventure was made for you.
Recommended for players aged 13 and up, as the story and sudoku difficulty grow more demanding as you progress.
Start your sudoku puzzle adventure. The mountain is waiting.
Solve sudoku puzzles to unlock a story of curiosity, keys, and adventure.
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- This app may share these data types with third partiesDevice or other IDs
- No data collectedLearn more about how developers declare collection
- Data is encrypted in transit
- Data can’t be deleted
What’s new
Fixed the purchase of chapters 4-10, showing the correct local price. Fixed repeated words in the word puzzle breaks and other small improvements.
App support
About the developer
NURI ALTINTAS
goworldexplorer@gmail.com
3 Ashwood Court
Wexford Road
Arklow
Co. Wicklow
Y14 F205
Ireland
