Talos
A quiet hex-board puzzle. Enclose the white stone before it escapes.
...On your turn you place one dark stone on any empty space; then the white stone moves one space toward the edge. Close every route before it gets there.
A game is six boards, each starting with fewer stones than the last. The fewer stones you need to finish a board, the more points it is worth. Three escapes ends the game early. Nothing is timed. No ads, no accounts, no engagement tricks.
The whole game is a single HTML file plus audio, released CC0 into the public domain. It runs in any modern browser, works offline, and installs to the home screen as a web app. ...