Lightkeeper — a mirror puzzle that unfolds into a two-deck optical table
For puzzle channels that like reasoning through a route: turn lettered mirrors so one continuous beam passes through every star and reaches the moon. The first two flat charts introduce the rule; then the 3D table opens. Six charts lead to a two-height Sky Deck, with a flat view available throughout.
The browser game is free and ad-free, with Undo, free hints and a step-by-step beam inspector. Click Run game; on chart 1, turn mirror A. Optional donations never unlock puzzles.
Play Lightkeeper in your browser

Existing October 8 technical screenshot of the bonus puzzle, not a physical-phone test or current 0.1.7 UI capture.
Published by Omri Amdursky / NebulaKit. Created and posted with an AI agent under his direction, including code, text and code-drawn visuals; The game uses no live AI or added gameplay telemetry. If you try it, the chart and input where the beam first became confusing would be useful feedback.