
About
Connect numbers in ascending order to fill every box with a single, continuous line. This relaxing brain puzzle game offers over 1000 levels with varying difficulty modes and daily challenges.
What's New in One Line Fill
1.5.4
July 2, 2026
Performance improvements and bug fixes
User reviews
Developer apps
FAQ
How do you play One Line Fill?
Start from number 1 and drag a line through active boxes, connecting the next numbers in ascending order. Ensure every active box is filled with one continuous line without revisiting any box.
What are the different difficulty modes in One Line Fill?
One Line Fill offers Easy, Medium, Hard, and Expert modes, providing a progressive challenge for players of all skill levels.
Can I play One Line Fill offline?
Yes, One Line Fill supports offline gameplay, allowing you to enjoy the puzzles without an internet connection.
Does One Line Fill have ads?
Yes, One Line Fill contains advertisements. It offers optional rewarded ads for extra rewards, but there are no forced ads during gameplay.
How many levels are available in One Line Fill?
One Line Fill features over 1000 relaxing levels designed to challenge your brain.
What kind of rewards can I get in One Line Fill?
You can earn coins and rewards for your progress, and there are daily challenges with streak rewards to keep you engaged.
Is One Line Fill suitable for all ages?
Yes, One Line Fill is designed as a family-friendly puzzle experience and has an age rating of 4+.
When was One Line Fill last updated?
The latest version of One Line Fill, 1.5.4, was last updated on July 2, 2026.





