The coast has gone dark. You are the lightkeeper: turn the stone paths around each lighthouse until its light reaches every house. Six places, from the Oregon coast to Ahuachapán, Okinawa, Castelnuovo di Conza, Lake Geneva and Uppsala, and 36 levels that grow from three stones to whole villages.
There is no timer and no way to lose. Every level ends with a short thought about connection and asking for help, because nobody should be left in the dark. The game has no flashing lights, works with keyboard, mouse, touch and screen readers, and saves your progress on your device.
Use the arrow keys to move between stones, Enter to turn a stone, Q to turn it the other way, U to undo and H for a hint.