Islands Hashi

Hashi is the bridge-building logic puzzle also known as Hashiwokakero — pure deduction, no luck, no clutter. Draw bridges between numbered islands until the whole map connects into one network. Simple to learn, deeply satisfying to master.

A grid of numbered islands floats on a quiet sea. The number on each island tells you exactly how many bridges must touch it. Connect them all so that every island is linked into a single network — with no crossing bridges and no diagonals. Every puzzle has one logical solution, and you can always reason your way to it.

HOW TO PLAY
• Drag from an island to build a bridge; drag again for a double.
• Tap a bridge to remove it.
• Each island's number = the bridges touching it.
• Bridges run straight, never cross, never go diagonal.
• Win when every island connects into one group.

A WORLD OF ISLANDS
Sail through 44 real-world archipelagos — the Florida Keys, the Hawaiian Islands, the Aegean, the Galápagos, the Faroes, the Whitsundays, Raja Ampat, Svalbard and more — each with its own handcrafted puzzles and a few words about the place.

PUZZLES WITH A SHAPE
Fifteen Shapes collections cut the board into a silhouette — a heart, a star, an anchor, a boat, a key, a crescent, a wave. The same rules, with a picture waiting at the end.

TEN EXTREME SEAS
For seasoned solvers: 500 puzzles where every board needs genuine deduction — thinking a few bridges ahead — with each pack climbing steadily to the hardest boards in the game.

A NEW PUZZLE EVERY DAY
The Daily gives you one fresh challenge every day. Sign in to climb the daily, weekly and all-time leaderboards and see how you stack up against players worldwide.

PLAY ALONGSIDE FRIENDS
React to anyone's score with an emoji, follow the players you are chasing, and get a nudge when someone passes you.

BUILT TO BE CALM
• Smooth, forgiving drag controls with full undo, redo and reset.
• Zoom and pan freely on larger boards.
• Gentle coaching that explains why a move doesn't work — so you learn, not just lose.
• Hints when you want one: each hint places one provably-correct bridge.
• Light and dark themes, beautiful typography, no noise.
• An optional daily reminder, at the hour you choose — never a nag.

RELAX AND THINK
No timers forcing you, no penalties for experimenting. Whether you have two minutes or twenty, Hashi is a quiet place to think. Perfect for a coffee break, a commute, or winding down at night.

Free to play, with ads. Two optional in-app purchases: a bundle of keys that unlock extra island groups and buy hints, or Hashi Complete — a single purchase that removes the ads and opens every archipelago and Shapes collection for good. An optional account adds cloud leaderboards.

Build your bridges. Connect every island.