Four difficulties
Easy, Medium, Hard, and Expert puzzles for quick breaks or deeper sessions.
Classic 9x9 logic, made calm
Sudoku
A clean, offline Sudoku game for daily brain training, focused play, and simple moments of logic.
Sudoku
00:34
What is inside
Pure Sudoku, no account required
Daily Challenge
A fresh puzzle each day with streak tracking and a calendar view.
Campaign mode
Progress through long-form level play and unlock the Champion theme.
Helpful tools
Notes, hints, undo, and mistake tracking keep the game readable without clutter.
Offline first
Core gameplay works without an account and without signing in.
Optional ads
Rewarded ads can unlock extra in-round help. The game remains free to play.
Localized app name
Built for English, Hindi, and Thai
English: Sudoku
Hindi: सुडोकू
Thai: เกมซูโดกุ
Support
For questions, feedback, privacy requests, data deletion requests, or reward redemption, contact us at sudoku_service@outlook.com. Sudoku does not create accounts; uninstalling the app deletes local game data from your phone.