One Light

You are the last keeper of an old lighthouse. Each turn you send one signal — a steady light, a short flash, a long flash, darkness or a double flash — and every captain within range reacts to it. The catch: they don't all read your light the same way.

The old salt follows the code. The foreigner reads the flashes the other way round. The fisher only stops in the dark, the smuggler only sails in it, the daydreamer reacts one turn late, and the young captain panics if you repeat yourself. One signal, many readings: bring every ship home before the oil runs out.

Features

• 42 hand-checked nights in 5 chapters, plus a secret night for the perfectionists
• 6 kinds of captains, tidal currents, ships arriving mid-night, fog and range
• Every night has a par: finish at par for three lanterns
• A hint that never spoils more than one signal, unlimited undo
• A captains' logbook, a keeper's journal and a quiet ending
• Plays on desktop (mouse or keyboard) and on phones (portrait or landscape)
• English, Français, Español, Deutsch, Italiano, Português (Brasil)
• No account, no ads, no tracking; progress is saved in your browser and can be exported with a code

Controls

• Mouse: hover a signal to preview where every ship will go, click to send it
• Keyboard: 1–5 signals, Z undo, R restart, H hint, M mute, P options, E fullscreen, Esc pause
• Touch: tap a signal to preview it, tap it again to send it; tap a ship to read its captain's card