Classic Sudoku
The timeless 9×9 puzzle
Five carefully tuned levels, full-size notes, clear highlighting, and progress that waits for you.
Stilloku · Calm Sudoku
A quieter way to play with numbers.
Classic Sudoku and flowing Math Paths, designed with clear choices, gentle progress, and just enough challenge for every day.
Two ways to unwind
Familiar logic, with a fresh path.
Play offline at your own pace. Create an optional account when you want your progress to follow you between devices.
Math Paths
Follow the calculation
Place number tiles into connected equations, one understandable step at a time, with a board you can zoom and explore.
Designed for calm
Helpful without getting in the way.
Play offline
Your puzzles, timer, notes, and progress stay available without a connection.
Choose your mood
Light and dark themes plus a calm collection of solid colors and gradients.
Sync when you want
An account is optional. Sign in only when you want secure cross-device progress.
Stilloku is preparing for release on iOS and Android.