One Line Puzzle icon

One Line Puzzle

Sidhant
Puzzle Game Casual
Version
1.0.0
Size
7.6 MB
Requires
Android API 24+
4.4 / 5 · 13,216 ratings 80,096 downloads

Updated Oct 27, 2026

Quick answer

Draw a single continuous line to connect numbers and completely fill the grid!

Unleash your logic with One Line, the ultimate daily brain-training puzzle game! 🧠

Looking for a satisfying mental workout? Inspired by classic path-finding mechanics, One Line challenges you to solve intricate grid puzzles using just a single, continuous stroke. It is the perfect game to sharpen your mind during your morning commute, lunch break, or evening wind-down.

How to Play: 1. Start at the number one. 2. Draw a continuous line connecting the sequential numbers in order. 3. The Ultimate Challenge: You must fill every single square on the grid without crossing your own path!

Screenshots

One Line Puzzle screenshot 1
One Line Puzzle screenshot 2
One Line Puzzle screenshot 3

What’s new

How to install

  1. Download the APK from the button at the top of this page.
  2. Allow “Install unknown apps” for your browser or file manager only, not for every app.
  3. Open the downloaded file and confirm the installation.
  4. If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.

Data safety

  • Every file is checked against its published SHA-256 before it is listed.
  • Files are scanned for malware on every update.
  • The permissions each app requests are listed on its own page.
  • Read the full safety policy for how we test, flag, and delist files.

Frequently asked questions

What is One Line Puzzle?
Draw a single continuous line to connect numbers and completely fill the grid!
Who develops One Line Puzzle?
One Line Puzzle is developed by Sidhant.
Which Android version does One Line Puzzle require?
One Line Puzzle requires Android API 24 or later.
What is the current version of One Line Puzzle?
The synchronized F-Droid version is 1.0.0.
Which license does One Line Puzzle use?
The signed F-Droid metadata lists GPL-3.0-only.
Where is the source code for One Line Puzzle?
https://github.com/sidhant947/OneLine

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