Carry the signal. No timer, no losing.
Lay relay tiles so a pulse of light travels from the source to every receiver. How to play: tap a relay in the tray, then tap a cell to place it — it orients itself to fit. Tap a placed relay to rotate it, or hold it to lift it out. Undo is unlimited and nothing is ever locked in. Forty hand-made grids across five sectors, each adding one new idea: splitters that branch the signal, portal pairs that route it through walls, amplifiers that revive a signal fading with distance, and one-way relays feeding receivers that need two separate signals. No timer. No move limit. No way to lose. Stuck? Explain will tell you what the signal is doing, free and unlimited, as often as you like.