What is Fill One Line?
Fill One Line is a free puzzle game with casual, block and levels elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Dive into the world of fascinating logic and test your mind in an exciting puzzle!
How to play Fill One Line
- Press "Play now" on the game screen. Fill One Line loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Start from the chosen starting point.
- Draw a line, connecting the cells of the field to fill them.
- Avoid obstacles and plan the route so that the line does not break.
- Complete the level by filling the entire field without gaps.
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Puzzle |
|---|---|
| Tags | Casual, block, levels |
| Controls | Shown in the game |
| Screen | Portrait (1080 Ã 1920) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameDistribution |
| Added to Gameziko | 30 September 2026 |
Description from the developer
Dive into the world of fascinating logic and test your mind in an exciting puzzle! Your task is to draw a line across the entire playing field, filling it completely, but keep in mind: there will be obstacles on the way that you need to bypass. The game offers many levels, from simple to incredibly difficult, allowing each player to choose a suitable challenge.
Fill One Line: frequently asked questions
Is Fill One Line free to play?
Yes. Fill One Line is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in Fill One Line?
The developer's instructions for Fill One Line say: "Start from the chosen starting point. Draw a line, connecting the cells of the field to fill them. Avoid obstacles and plan the route so that the line does not break. Complete the level by filling the entire field without gaps."
Can I play Fill One Line on a phone or tablet?
Fill One Line is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Fill One Line?
If you like Fill One Line, try Hexa Block: Honey Cells, Chain n Gain and Puzzle Blocks: Fill It Completely. They are puzzle games with similar themes, and you can find more in the Puzzle category on Gameziko.
Related guides
- 6 Best Free Puzzle Games to Play in Your Browser: Six free puzzle games to play online with no download, from 2048 and water sort to jigsaws, Minesweeper and sliding blocks, and who each one suits.
- 2048 Strategy: How to Reach the 2048 Tile: How 2048 works and the corner strategy that wins it: keep your biggest tile in a corner, build a chain, avoid one direction and recover from mistakes.
Good to know
Fill One Line is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.