Prism
Turn mirrors, split beams and filter colours to light crystals on small floating islands.

Your goal
Wake every crystal with the colour it needs. Later puzzles combine prisms, colour filters and sliding pieces, so one change can affect several beams.
Keyboard and mouse controls
- Click or drag a mirror to turn it. Right-drag: orbit the camera; scroll: zoom.
- Z: undo; R: reset; H: hint. On-screen buttons also provide these actions.
Getting started
Trace a beam from its source to the first unlit crystal. Change one mirror at a time and use undo when a working path is disrupted.