Keen

From Simon Tatham's Portable Puzzle Collection. Copyright Simon Tatham and the contributors named in the MIT license and full notices. This community redistribution is adapted for Mindblown; it is not an official service of the original authors.

The original game engine and puzzle rules are unchanged. Presentation, touch controls, platform saves and session events were adapted on 2026-11-02. The editable adapter and JavaScript are served with this page. Original project and source downloads.

Emscripten runtime license. This software is provided without warranty.