Loop — Connect the Dots Logic

Loop is a calm, offline logic puzzle about one simple idea: connect all the dots into a single closed loop.

Draw horizontal and vertical lines between the dots so that every dot is joined by exactly two lines, forming one continuous loop with no loose ends and no branches. A few pink lines are given to start you off — they're always part of the solution, so you can reason out the rest, one deduction at a time.

No timers, no pressure, no noise. Just you and the puzzle.

Features

• One clean rule, endless puzzles — easy to learn, genuinely tricky to master
• Grid sizes from 4×4 up to 20×20
• Adjustable difficulty, from gentle warm-ups to deep logical challenges
• Replayable seeds — enter a number to play the exact same board again, or share it with a friend
• Two play styles: simple line-toggling, or guess-and-undo for working through the hard spots
• Built-in How to Play
• Distraction-free design that gets out of your way

Private and offline by design

• 100% offline — no internet connection needed
• No ads
• No analytics, no tracking, no third-party SDKs
• No account, no sign-in
• Requests zero device permissions

Your puzzles and settings are saved only on your device and never leave it.

Whether you've got five minutes or an hour, Loop is a quiet, satisfying way to think.