Conceptis Slitherlink – For puzzle fans of all skills and ages

[Game] Conceptis Slitherlink

Conceptis Slitherlink  Slitherlink are addictive loop-forming puzzles which were invented in Japan.

Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

Each puzzle consists of a rectangular lattice of dots with some clues in various places. The object is to connect the dots surrounding each clue so that the number of lines equals the value of the clue and the lines around all clues form one continuous loop with no crossings or branches. Empty squares may be surrounded by any number of lines.

The game features 2-finger tapping for quick zoom, auto complete clues setting and a link segment highlighting option to help to avoid creating separate loops. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Conceptis Slitherlink includes a Weekly Bonus section providing an extra free puzzle each week.


120 free Classic Slitherlink puzzle samples
Extra bonus puzzle published free each week
Multiple difficulty levels from very easy to extremely hard
Puzzle library continuously updates with new content
Manually selected, top quality puzzles
Unique solution for each puzzle
Hours of intellectual challenge and fun
Sharpens logic and improves cognitive skills


Concurrently playing and saving multiple puzzles
Puzzle library sorting and hiding options
Graphic previews showing puzzles progress as they are being solved
Unlimited Undo and Redo
Auto complete clues
Highlight link segment
Quick zoom using 2-finger tap
Check puzzle
Track puzzle solving times
Backup & restore puzzle progress to Google Drive


Slitherlink have also become popular under other names such as Fences, Loop the Loop, Loopy, Suriza, Dotty Dilemma and Number Line. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. – the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

Conceptis Slitherlink user reviews :

So far I love it. I’ve never played any like it, but it seems to be a very intuitive user interface and it has some features that I would think not all slitherlink apps have. Good fun.

Great version of a great puzzle. Simple to use and moves you through the concept teaching you with easier puzzles to start with before moving on to more complex ones. There are plenty of free puzzles to start you off with the option of buying more of you want. Highly recommended.

I’m still a newbie learning the “patterns” to look for to solve the puzzle, so I’m still focused on the easier puzzles. But this is a captivating game.

Fun puzzle game but there’s something wrong with difficulty categories. It took me 7 min to solve a “very easy” puzzle, 2 min to solve a “medium” one and 4 min to solve a “hard” one. Not sure what they based the categories on but it clearly means nothing for me and the time it will take me to solve them. So, if you struggle with a “very easy” puzzle don’t beat yourself up and try another.

Love it. Wish it could zoom in more, but the puzzles are excellent.
  • Conceptis Ltd.
  • Thank you for your feedback. If you can, please send us an email to support[at] so we can understand more about your zoom requirements. We are continuously looking how to improve our apps.

Really smooth controls and fun puzzles. The only feature I wish it had was the ability to continuously draw a line segment by moving your finger around without lifting from the screen. I think a feature like that would really capture the “Slither” feeling of the SlitherLink game.

Lots of free levels plus weekly bonus levels. 40 each of easy, medium and hard levels are included free, extra packs can be bought. One free bonus level each week. The’controls’ make sense and you can zoom in easily. A handy ‘check’ button if you’re really stuck.

Two suggestions: 1. Add bookmarks so we can easily return a puzzle to a previous state. 2. Make it more clear where the edge of the puzzle is (the thin frame does not stand out very well when zoomed in) .

Nice App. Similar to loop the loop in Times of India. I always enjoy this puzzle. Here there are more difficult levels are also available.

Another great Conceptis game. I just wish you can press and hold to mark an x instead of tapping twice. Also like abother reviewers suggestion of dragging for a continuous line.

I love the Conceptis puzzle books, and these are worthy puzzles from them. So glad to get an array of games of this quality. Zoom in for greater precision.

I love puzzles. So conceptis puzzles have been my best! Just love their all games and creative ideas.. One who loves puzzles can definitely love these games! Thank you conceptis!!!

Very challenging at higher levels but easily doable at lower ones with plenty of additional packs for cheap and great controls even on a phone. Conceptis never disappoints

Works really well, and big range of puzzles in size and difficulty.

Contact developer :


Video :

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