Slitherlink: Logic Loop Puzzle

Slitherlink: Logic Loop Puzzle Draw a single, unbroken loop through the grid — no loose ends, no crossings, no guessing. Slitherlink is a pure logic puzzle. Each numbered cell tells you exactly how many of its four sides are part of the loop. Use those clues to deduce the path, step by step, until the loop snaps shut and the grid lights up. How to play Tap an edge to draw a wall segment Tap again to mark it as empty (×) Tap a third time to clear it Every numbered clue must be satisfied exactly The finished loop must be a single closed path with no branches Features 150+ hand-curated puzzles across six difficulty tiers Beginner puzzles to learn the rules, Master puzzles to test your limits Pinch to zoom and drag to pan on large grids Long-press any wall segment to highlight a connected section Built-in mistake checker — tap Check to illuminate clue violations Undo and redo support Timer tracks your solve time Progress saves automatically Background music with toggle Clean, readable board design optimized for all screen sizes Difficulty tiers ★ Beginner — gentle introductions, small grids ★★ Easy — building confidence ★★★ Medium — where the real logic begins ★★★★ Hard — multiple deductions required ★★★★★ Expert — for seasoned puzzlers ★★★★★★ Master — the ultimate challenge Beginner and Easy puzzles are free. Unlock the full library with a single one-time purchase — no subscriptions, no ads, no tricks. If you enjoy Sudoku, Nonograms, or Picross, Slitherlink will feel right at home.