
Fill One Line
Draw a line across the entire playing field in Fill One Line! Play online for free now!
About this game
- Controls
- Not provided
- Supported devices
- Desktop, smartphone and tablet
- Publisher
- Game Distribution
- Genre
- Kids Games
- Release Date
- 2025
- Latest update
- Jul 2026
- Rating
- 3.4 (44 votes)
Game overview
Fill One Line - Fill the playing field with just one line!
Fill One Line is a tricky puzzle game in which you have to draw a continuous line to fill the entire grid.
Play your way through a total of 300 levels and fill all the boxes in a game area with just a single line. What initially sounds quite easy becomes more and more difficult from level to level. This is because the game area is peppered with numerous obstacles that you have to cleverly draw around without ending up in a dead end. Choose between four difficulty levels with different sized playing fields: Beginner (100 levels), Medium (100 levels), Expert (50 levels) and Master (50 levels).
Tip: You don't have to start a level from scratch if you get stuck. Simply draw back the line until you reach a square where you can continue.
Can you solve all the levels in this logic puzzle and become the puzzle champion?
More brain games to train your brain
Did you like Fill One Line? Then take a look at Glow Lines or Happy Connect.
Fill in all the boxes and master the tricky levels! Play Fill One Line now for free online on Monkey Games!
Featured details
- Free to play in your browser
- Available on desktop, smartphone, and tablet
- Category: Kids Games
Related categories
FAQ
How do I play Fill One Line?
Open the game area above and select Play now to start the game in your browser.
Which devices can I use to play Fill One Line?
The game is available on desktop, smartphone, and tablet.
Which categories does Fill One Line belong to?
Fill One Line belongs to the following categories: Mobile, HTML5 Games, Kids Games, Logic Games, and Puzzle Games.






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