Sudoku

At a glance

Sudoku is a free multiplayer puzzle game that plays in your browser on sudoku.synerworlds.com. On Foundplay since October 25, 2026.

Questions

Is Sudoku free to play?

Yes. Sudoku is free and plays in your browser on sudoku.synerworlds.com. Foundplay links to it but doesn't host it.

Do I need to download Sudoku?

No. It runs in a browser tab, with nothing to install.

Is Sudoku safe?

Foundplay checks its link every few hours and gives it a daily safety check (malware blocklists, downloads, crypto miners, parked domains and fake virus warnings), and hides the game at once if that check fails. No check can promise a site is safe: if a game asks you to download something or for a password, leave it.

What games are like Sudoku?

NicheNaut, Cross Words and Viking Gems, from More like this below. They're free in your browser too.