About This Launch
CalmSudoku is a free, ad-free Sudoku web app designed for a relaxing and focused puzzle experience. Play instantly with no registration, choose from Beginner to Expert difficulty levels, or take on a new Daily Sudoku challenge. Optional live radio lets you enjoy music while you solve.
Why I Built This
I built CalmSudoku because I wanted a simple, distraction-free way to play Sudoku online. Many puzzle sites are crowded with ads and interruptions, so I created an experience that is free, requires no registration, and adds optional live radio for people who enjoy music while solving.
Launch Details
CategoryEntertainment
StageLive
ListedSeptember 1, 2026