About This Game

Sudoku Haven is a calmer way to play Sudoku — 450,000+ hand-graded puzzles, fully unlocked and offline — no ads, no in-app purchases. It's a quiet place for your mind, too: soft light, unhurried numbers, and room to breathe between moves.

Every puzzle is hand-graded across five difficulties, from gentle Beginner grids to genuinely challenging Extreme. Play a fresh Daily Challenge every day, return to any puzzle in the archive, or generate endless random puzzles whenever you like.

Everything is built to keep you in flow:
• Smart hints that nudge you forward instead of handing you the answer
• Notes, auto-candidates, and gentle highlighting that make tough puzzles approachable
• Built-in trainers that teach real solving techniques — hidden singles, naked pairs, X-Wing, and more
• 20 hand-tuned themes, light and dark — make the board truly yours
• Stats, streaks, and stars that quietly track your progress
• A relaxing brain workout with keyboard and controller support, soothing music, and soft sound

No clutter, no pressure — just you and the next square.

Fully unlocked: no ads, no in-app purchases — just the complete game, playable offline.

A friendly head-to-head multiplayer mode is in mind, too — and the more players who find the Haven, the sooner it arrives.

Find your calm and start solving.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some of this game's images and artwork, its background music, and parts of its translated text were created with the help of generative AI tools. All AI-assisted content was reviewed by the developer before being included. The Sudoku puzzles themselves are generated by traditional (non-AI) algorithms, and no content is generated by AI while you play.