Slitherlink vs LOOP

Slitherlink is a classic logic puzzle played on a grid. Some cells contain number clues. Your goal is to draw a single continuous loop along the grid edges so that every clue is satisfied. Each number tells you how many of its four sides must be part of the loop. The loop cannot branch, cross itself, or form multiple smaller loops. Every puzzle has exactly one correct solution and can be solved using logic and deduction alone — no guessing required. Simply tap the space between two dots to switch edge states: line → X → empty. Mark lines to build your loop and use X to eliminate impossible edges. Enjoy unlimited fun with infinity puzzle generation, so you will never run out of challenges. Play offline anytime, anywhere. Choose Quick Mode with Easy, Medium, or Hard difficulty, or test your skills in Challenge Mode with 100 handcrafted levels. The game supports both light and dark mode for comfortable play day or night. Clean design. Pure logic. Endless puzzles.

Connect the dots into a single closed loop, using only the numbers as clues. LOOP is a calm, focused logic puzzle for a quiet moment of your day. New to it? The app coaches you one move at a time, so you can start today. LOOP is a Slitherlink puzzle, also known as Fences or Loopy. Each number tells you how many of that cell's four sides belong to the loop. Follow the numbers and draw one unbroken loop with no branches. ■ PLAY WITH PEACE OF MIND - Free to start. No subscription - No third-party ads (only promotions for the developer's own apps) - Your records stay on your device ■ WHY YOU'LL LIKE LOOP - Every puzzle has exactly one solution. No ambiguous boards - Easy and Medium can be solved by pure logic, with no guessing - Four levels: Easy, Medium, Hard, Expert - A daily challenge and a streak that grows - A guided how-to walks you through your very first puzzle - Practice mode explains the next move and why it works - Achievements that grow as you play - Undo and redo, pinch to zoom, and drag to draw lines - Stats: puzzles solved, streak, no-hint rate, total play time, and solved / best / average per level - Made for iPhone and iPad, in English and Japanese, with Dark Mode support ■ GREAT FOR - Fans of Slitherlink and other pencil puzzles - Sudoku players looking for their next logic challenge - Anyone who wants a quiet break to focus - Beginners who want to learn the techniques step by step ■ PRIVACY AND SAFETY - Puzzles work without an internet connection - No account and no personal information - The app reads public App Store information only to show the developer's other apps