A calm, classic sudoku game
Sudoku Zen is a classic 9×9 sudoku puzzle game built for calm, focused solving. Pick Easy, Medium, Hard or Expert, or let The Climb choose for you. Every puzzle is solver-verified with exactly one solution, and no ad ever interrupts a puzzle in progress.
Features
- Daily Sudoku — the same grid for every player worldwide, with streak milestones at 7, 30 and 100 days and a Daily Archive for days you missed.
- Weekly Tournament — one shared Hard puzzle each week and a global leaderboard via Play Games.
- The Climb — an endless adaptive ladder that steps up after three wins in a row.
- Puzzle Vault — 12,000+ puzzles in themed packs: Speedster Drills, Holidays, World Tour and Summit Ascent.
- Pencil notes, undo, error-check, auto-save and row, column and box highlighting.
- Built for tablets — board and number pad side by side in landscape, plus a home-screen widget.
- Stats — best times, win rate, streaks and total time played.
- Light, Dark and nine more colour themes. Available in English, Spanish, Portuguese, German, French and Hindi.
Frequently asked questions
Can I play sudoku offline?
Yes. New games, the Daily Sudoku, The Climb and the Weekly Tournament puzzle are generated on your device, so they work in airplane mode, without Wi-Fi or mobile data, and without an account.
Is Sudoku Zen free?
Yes, it is free with ads. The optional Zen Pass removes ads, opens the Puzzle Vault and adds unlimited hints.
How many sudoku puzzles are there?
Unlimited generated puzzles at four difficulty levels, plus a new daily puzzle and more than 12,000 curated grids in the Puzzle Vault.
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