LightHouse: Logic Puzzle

Sudoku logic meets lighthouse islands – without a single forced ad.

LightHouse is a calm logic puzzle in the spirit of Star Battle. Place one lighthouse in each row, column and coloured island – and never let two lighthouses touch, not even diagonally. Simple rules. Clever puzzles. That satisfying moment when everything clicks.

NO FORCED ADS. EVER.
Your thinking time belongs to you. LightHouse never interrupts a puzzle with an ad. Rewarded ads are optional – watch one only when you want extra help, or never at all. Every puzzle can be solved without them.

A SMALL SET OF RULES. A WORLD OF PUZZLES.
• Place exactly one lighthouse in every row.
• Place exactly one lighthouse in every column.
• Place exactly one lighthouse on every coloured island.
• Keep lighthouses apart – including at the corners.

Mark impossible spaces with an X, narrow down the possibilities and uncover the solution through pure logic. Ten teaching levels show you how, one step at a time.

As you progress, reefs add another layer of deduction: light each reef with a lighthouse one or two cells away in the same row or column.

2000 VERIFIED LEVELS
Every one of the 2000 puzzles is verified to have exactly one solution – reachable by reasoning alone, never by guessing. Start gently and work your way up to expert 10×10 sea charts.

HINTS THAT TEACH, NOT SPOIL
Stuck? A hint shows you a real deduction: what you can rule out, and why. Need more? Use a Beacon to reveal one correct lighthouse.

YOUR PUZZLE, YOUR PACE
• Journey through 2000 levels at your own speed.
• Create endless fresh puzzles in Free Play – boards from 5×5 to 10×10, difficulty from easy to ultra.
• Solve the Daily Puzzle, keep your streak going and share your result with friends.
• Race other players in the Weekly Race – the top three win hints and beacons every Monday.
• Open treasure chests along the way.
• Track solved puzzles, mistake-free runs and personal best times.
• Turn on island patterns to tell colours apart.
• Play in 35 languages.
• Play offline – no account, no sign-up. (The Weekly Race needs a connection.)

THREE LIGHTS PER PUZZLE. NO TIMERS.
A wrong lighthouse costs one of your three lights. Run out and you can continue once or restart the puzzle. There is no countdown on the board – pause, think and solve at your own pace. The Daily Puzzle and Free Play are always open.

A CALM PLACE TO THINK
A cheerful seaside world, soft colourful tiles and the warm glow of every lighthouse you light. Perfect for a five-minute brain break on your commute or a long, quiet evening of logic.

Download LightHouse: Logic Puzzle and light your first island today.