Fill One Line Puzzle Game

About This Game

Sharpen your mind with a connect-the-block-style one-line brain training puzzle game.
A simple but addictive one-line puzzle game that’s completely free to play.

Your brain becomes more active the more you play.
During your commute, before you sleep… enjoy downtime with brain training.

The rules are extremely simple.
Just fill in all of the blocks using only one line.

Use hints for puzzles that are too hard to solve.
Hints are also free, of course.

How to Play

Sharpen your mind with a connect-the-block-style one-line brain training puzzle game.
A simple but addictive one-line puzzle game that’s completely free to play.

Your brain becomes more active the more you play.
During your commute, before you sleep… enjoy downtime with brain training.

The rules are extremely simple.
Just fill in all of the blocks using only one line.

Game Features

• Instant play — runs in your browser, no download or installation
• 100% free — no sign-up, no payment, play as long as you like
• Any device — desktop, laptop, tablet and mobile friendly
• Fullscreen mode — use the Fullscreen button below the game for the full experience
• Part of our Puzzle collection — hand-picked for quality and quick loading

Why Play Fill One Line Puzzle Game?

Looking for a Puzzle game that respects your time? Fill One Line Puzzle Game starts instantly, teaches itself as you play, and keeps every session short and satisfying. Like every title on Game Crafty it is completely free, works on any modern device, and needs nothing but your browser — click, play, and see how high you can climb.