Lamplight Workshop

Lamplight Workshop is a free physics puzzle game of chain reactions. Each puzzle is a machine drawn on a blueprint with a few of its parts missing. Put the ramps, belts, fans, candles, balloons, cats and rockets where they belong, press RUN, and watch the whole contraption go.

There are 82 puzzles in eight chapters, from The Basics to Smorgasbord, with more on the way. On a computer or a tablet, My Workshop lets you build a puzzle of your own and send it to a friend as a link.

It plays in your browser on a computer, a tablet or a phone. No sign-up, no download, no ads, and your progress stays in your browser. New chapters are announced on r/Lamplightworkshop.