Bring a quiet night river to life, one clever tap at a time. Tap a paper lantern to switch it and its neighbours on or off. Your goal: light every lantern together.
Start with two small tutorials, then explore an endless sequence of deterministic puzzles. Boards grow from 3×3 to 7×7. Empty spaces appear from level 12 and wrap-around edges from level 25, so simple patterns stop being enough. Every puzzle is solvable, and its par is the true fewest number of taps.
Match par for three stars, and keep matching it to grow your perfect streak. Take your time: the timer never affects your stars. Unlimited undo lets you explore, and restart gives you a fresh attempt. Your best stars are saved for each level.
If you want a nudge, choose to watch a rewarded ad for a hint from a shortest solution. Using a hint limits that attempt to two stars. Hints depend on ad availability; puzzles can always be solved without them.
Warm lanterns, soft reflections, gentle sounds and optional haptics accompany the puzzles. Play in light or dark menus, with support for 12 languages.
Contains a banner ad below the board, occasional full-screen ads between completed levels, and an optional rewarded video only when you choose a hint. Puzzle play works offline; ads require a connection.
Flip paper lanterns and their neighbours until the whole river glows.