One engine, five dimensions. Five-cell pieces fall into a wrapping well; fill a whole perpendicular layer to clear it. The well climbs 2D → 3D → 4D → 5D, each tier adding an axis and a fistful of rotation planes (1 → 3 → 6 → 10). Scoring runs on Fibonacci; piece hues are spaced by the golden angle.
desktop: arrows move · Z X C… rotate · Q/E R/F extra axes · G iso · space drop · H hold · [ ] orbit