Lightkeep Isles

Lightkeep Isles is a calm, handcrafted logic puzzle game about bringing light to the sea. You are the keeper of a chain of islands, and every bay must be lit before nightfall. Place lighthouses, buoy beacons, range lights and mirror buoys so their beams reach every patch of open water — without two lights ever shining into each other. If you like Light Up, Akari, nonograms, sudoku or quiet "lights out" brain teasers, these 320 hand-built boards will feel like home. Every board is a small, self-contained puzzle with exactly one solution. Tap a light from the tray, drop it on the water, and watch the beams sweep across the chart. Rocks, islands and anchored boats block the light; numbered flags on the rocks tell you how many lamps must sit beside them, like the clues in a classic logic grid. Mirror buoys bend a beam around the corner, reefs must stay in the dark, and range lights shine one direction only. Read the clues, rule out the dead ends, and light the whole bay cleanly to earn three rays. KEY FEATURES ✓ 320 handcrafted boards across 8 themed seas — Coral Lagoon to the Pearl Archipelago, each introducing a new piece or obstacle ✓ One guaranteed solution per board — pure deduction, never guesswork or luck ✓ Open Sea mode — endless procedurally generated charts in four weather grades, from Calm 6×7 bays to Storm 9×11 expanses ✓ A gentle difficulty curve that teaches every rule in play, with live animated how-to pages you can open any time ✓ Earn rays for clean solves and collect lamp oil to spend on hints when a board has you stuck ✓ Marker buoys to jot down where a light can't go, plus one-tap undo ✓ Light a lighthouse on your home isle for every sea you complete ✓ Fully offline, no account, no ads, no timers — play at your own pace HOW IT WORKS 1. Pick a light from the tray and tap a water cell to place it. 2. Beams travel until they meet a rock, island, boat or the chart's edge — light every patch of water. 3. Match the numbered flags, keep reefs dark, and never let two lights shine at each other. 4. Solve with no hints and no conflicts for a perfect three-ray finish. WHY LIGHTKEEP ISLES — it is a quiet, premium puzzle game with no noise attached: no energy meters, no pop-ups, no sign-in wall, no internet required. The art is warm and hand-drawn, the boards are verified to be solvable by logic alone, and the Open Sea generator means you never run out of fresh puzzles. It is built for long, relaxed sessions and quick five-minute breaks alike. PRIVACY / DATA — Lightkeep Isles works fully offline. Your progress is stored only on your device. No account, no tracking, no ads, no data leaves your phone. CLOSING — Pick up the tray, read the water, and light every bay. Fair winds, keeper.