Talos
A quiet hex-board puzzle. Enclose the white stone before it escapes.
...It runs in any modern browser, works offline, and installs to the home screen as a web app. Play it at https://danger.academy/Talos/ or download the zip and open index.html.
Rules descend from Chat Noir (2007) and Conway's Angel Problem (1982). Original music and stone sounds by the author.