Midnight Sudoku

One more cell. One more moment with her.

Midnight Sudoku brings classic number puzzles together with expressive characters and stories set in distinctive night-time worlds. From a rain-soaked lounge to a neon-lit city, a new encounter waits beyond your next puzzle.

A response to your next move
Watch small expressions and movements bring each character to life as you find the answers. Play at your own pace and enjoy a little company along the way.

A new view after the final cell
Complete a puzzle to see the board slide away and the scene gently zoom out, revealing the character's full illustration. Revisit the illustrations and story moments you've unlocked in your Collection.

Ten chapters, 175 story stages
Begin with a short, gentle first chapter of five puzzles. Follow each character's conversations through a different setting, and discover the ending of their chapter.

Your next puzzle, your choice
Complete Chapter 1 to unlock Free Play. Choose a character whose chapter you've completed, select a theme and difficulty, and start a newly generated puzzle. Four difficulties are available: Easy, Normal, Hard and Expert.

A reason to return
Try one Daily Challenge each day and collect cumulative check-in rewards. Missing a day doesn't reset your check-in total. Daily Challenges refresh at midnight in Korea, UTC+9. Optional reminders can be enabled or turned off in Settings.

Learn gently, play comfortably
New to Sudoku? A skippable tutorial teaches rows, columns, 3×3 boxes, notes and hints. Use notes, hints, Undo and Erase in your puzzles. Progress saves automatically, and sound, vibration and motion can be adjusted.

Your language, your night
Play in Korean, English, Japanese or Traditional Chinese. Use your device language automatically or choose a language in Settings.

Optional permanent ad removal
A one-time purchase removes interstitial ads and provides extra hints and double clear rewards without watching ads. It is not a subscription. Restore a valid purchase using the same mobile store account. Prices are shown by your store.

You meant to stop for tonight.
Perhaps just one more puzzle.

Recent changes:
Play in English, Japanese and Traditional Chinese, alongside Korean. Choose your language in Settings or use your device language. Includes localized tutorials, character dialogue, purchase guidance and optional puzzle reminders.