Link Lines — Flow Free Style Connect the Dots Puzzle
- Plays on
- Desktop · Phone · Tablet
- Price
- Free · no download · no sign-up
Link Lines is a calm connect-the-dots puzzle on a glossy 3D board. Every colour has two dots: drag a line from one to the other. Lines can never cross, so the trick is to route them around each other — and a perfect solve fills every single square.
Draw by dragging square by square; if your finger skips ahead, the line follows along the way. Drag back along a line to shorten it, or start again from either dot.
Drawing through another colour cuts that line back to where you crossed it, so you can try an idea without clearing the board.
Every puzzle is made from one long path that runs through every square, cut into pieces — so each level has a solution that fills the whole board, and the ends of every piece become its dots.
Boards grow from 4×4 to 9×9 with more colours as you climb. Linking every pair finishes the level; filling every square earns three stars.
Stuck? The bulb draws one line for you, taking a star in exchange.
Link Lines is a pipe-and-dots puzzle of the kind made famous by Flow Free and based on Numberlink, the Japanese pencil puzzle from Nikoli: pairs of coloured dots, one line per colour, no crossings and no empty squares. If you have played Flow, you already know the rules; Link Lines adds a glossy 3D board and an endless ladder of boards that grow from 4×4 to 9×9.
The puzzles reward logic more than trial and error. Start with dots near the edges and corners, whose lines have the fewest choices. Short pairs close together are often best linked directly. If a square can only be reached by one colour, that line must pass through it, and you should never leave a single empty square boxed in by lines. Link Lines is free on crokocat and plays in the browser on desktop, phone and tablet with no download — a calm puzzle for a few minutes or an hour.
How to play Link Lines
Link every pair of dots:
- Drag from a dot to its twin of the same colour.
- Lines can't cross — route them around each other.
- Drag back along a line to shorten it.
- Link all the pairs to finish the level.
- Fill every square for three stars.
Game modes
| Mode | What changes | Who it's for |
|---|---|---|
| Levels | An endless ladder of boards from 4×4 to 9×9; each has a solution that fills the board. Stars by how much of the board you fill. | Anyone who likes a relaxing, logical puzzle. |
Tips for Link Lines
- Start with dots near the edges and corners — their lines have the fewest choices.
- Short pairs close together are often best linked directly.
- If a square can only be reached by one colour, that line must pass through it.
- Avoid leaving single empty squares boxed in by lines.
- When two lines fight for a corridor, try routing one around the edge.
Who made Link Lines?
Link Lines was built by crokocat game studio in 2026 — puzzles cut from paths that run through every square, glossy 3D tubes that grow as you draw, and a coached first board.
About this game
- Controls
- Drag from a dot to the dot of the same colour. Drag back along a line to shorten it; drawing through another line cuts it. Reset clears the board, the bulb draws one line for you.
- Supported devices
- desktop, phone, tablet
- Developer
- crokocat
- Genre
- Puzzle
- Release date
- September 2026
- Latest update
- September 2026
Related categories
Frequently asked questions
Is Link Lines free to play?
Yes. Link Lines is free on crokocat with no download and no sign-up — it runs in your browser on desktop, phone and tablet.
Is Link Lines like Flow Free?
Yes, it is the same connect-the-dots idea: link each pair of coloured dots with a line, never cross another line, and fill the whole board. Link Lines builds every board from one path through every square, so a full-board solution always exists.
Do I have to fill the whole board?
Linking every pair finishes the level; filling every square gives three stars.
Does every level have a solution?
Yes — each board is built from a path through every square, so there is always a solution that fills it.
Can lines cross?
No. Drawing through another line cuts it back.
How big do the boards get?
From 4×4 at the start up to 9×9 with more colours later on.
Guides & tips
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