Nurikabe: Islands & Walls

Nurikabe are addictive island-forming puzzles where you partition between clues with walls to create islands of corresponding size. Each puzzle consists of a grid with number clues. Your goal is to build walls so that each island contains one clue and the number of squares equals the clue's value. Walls must form a continuous path, and no 2x2 or larger wall areas are allowed. These Japanese puzzles use pure logic and require no math, offering endless fun and intellectual entertainment for puzzle fans of all skill levels and ages.

The game features a highlighting option to help see if a wall segment is about to become isolated, and an island size counter to view how many squares belong to an island. Graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved, with a Gallery view option for larger previews. For more fun, Conceptis Nurikabe includes a Weekly Bonus section providing an extra free puzzle each week.

The app includes 90 free Nurikabe puzzles, plus 30 extra-large puzzles as a tablet bonus. An additional free puzzle is published each week. Difficulty levels range from very easy to extremely hard. The puzzle library continuously updates with new, manually selected top-quality puzzles, each with a unique solution. Enjoy hours of intellectual challenge and fun that sharpen logic and improve cognitive skills.

Gaming features include unlimited puzzle checking, unlimited undo and redo, highlighting wall segments, showing island size counter, concurrently playing and saving multiple puzzles, puzzle filtering, sorting, and archiving options, Dark Mode support, graphic previews showing puzzle progress, portrait and landscape screen support (tablet only), tracking puzzle solving times, and backup & restore puzzle progress to Google Drive.