Ink & Echo · SOS
Place either S or O, complete straight SOS lines, and earn another turn for every scoring mark. A cozy letter-tactics table against a local computer or a friend: 3×3, 5×5 or 7×7 pages, hints, whole-turn undo, keyboard/pointer play and local saves. Source: https://github.com/MadeOfBees/JSOS/tree/1ad6a530f6a2bba823f4e9090eecbc0f3075faea (MIT; 0 stars observed; small browser-native source). Metadata tags: github-source, game.
Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.