Fyr
A new stretch of coast every night.
Place mirrors to bend the lighthouse beam. Light the boats the night asks for.
Submit tonight's result?
Tap open water to place a mirror, tap again to flip it, and once more to take it away.
How the light moves
The beam goes in a straight line. A mirror turns it 90 degrees. Land and rocks stop it.
Each night asks you to light a number of the boats out on the water. Every boat can be reached, but usually not all at once, so choosing which ones to leave in the dark is part of the puzzle.
Some nights are calm, some are stormy, in no particular order. Some add one twist: whirlpools, a prism that splits the beam, or a coloured filter. Coloured light only shows boats with a lamp of that colour, and ordinary boats need ordinary light. Too rough tonight? Submit what you've lit so far, or show a solution.