Slitherlink

Ejelta LLC

In-app purchases

About this game

Slitherlink is a logic puzzle: draw one closed loop through a grid of cells. Each number says how many sides of that cell the loop runs along. Every puzzle has exactly one solution, and you can always find it by reasoning, without guessing.

There are absolutely no ads and you can play offline.

Not just squares
Classic Slitherlink is played on squares. Here they are one grid among many: Honeycomb, Cairo pentagons, Kites, Diagonals, Snowflakes and Penrose tiles, with more on the way.

Play your way
Four sizes from small to huge and three difficulties in every grid. Mark your favorites and let the game deal you a random one.

Unlimited levels
Honeycomb is free, forever, and its levels never run out. Every other grid comes with free levels to try, and a single one-time purchase unlocks unlimited levels in it.

Help with thinking
Lines and clues color themselves as you progress. Parity shading lets you mark the inside and the outside of the loop, by hand or automatically. Wrong edges can be highlighted. Or switch it all off for the harder pen-and-paper look.

Made for long puzzles
Unlimited undo and redo. Bookmarks to come back to. Zoom, phone and tablet layouts in either orientation, and light and dark themes.

See how you did
When you finish, see the median time of everyone who solved that kind of puzzle and where yours stands. Share it if you like, or turn the ranking off for a no-pressure game.

New to Slitherlink?
The built-in tutorial teaches the rules and the basic patterns in a few minutes.

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Questions or problems? Please email, and you will get an answer.

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Slitherlink is also known as Loopy, Loop the Loop, Fences, Takegaki, Suriza and Dotty Dilemma. If Sudoku has gone stale, this is the next puzzle to learn.

Ratings and reviews

have been playing this game for what must be at least a year, it's a very fun mindless puzzle game on easier levels, and harder levels are actually quite difficult, no ads, very intuitive controls, good performance, and i only today learned that you need to purchase some of the optional later levels in the non hexagon game boards, for only $3. so much fun with no ads or microtransactions. I've gotten hours of enjoyment if not more, and keep coming back because it's just so nice and cozy. 10/10

So far, it's great. Game play is straight forward. I like the dark mode. It's addicting and you can play for a while but you can also just play one level at a time. No glitches so far. No ads. My only criticism is the (low) sensitivity of the game to taps for moves (making lines) - could be a bit better, but it doesn't impede game play.

quite literally the only puzzle game worth keeping on your phone for as long as possible. no ads, just one-time purchases that generate infinite unique puzzles. beginning levels are relatively simple to get the hang of, and once you master the logic you can tackle any size of slitherlink. the fun part is the median timer it offers as a way to demonstrate competition without necessarily creating leaderboards.

What’s new

- New "Penrose" grid
- "Favorites" grid randomizer
- New ranking on win — disable in settings, or view the chart for details
- Updates for Android 16
- Minor bug fixes