SumLines
DownloadApp details
- Version
- 1.7
- Updated
- 08.10.2026
- Category
- Casual
- Compatibility
- Android
- Package name
gabriel.sumlines.game- Developer
- Gabriel.Gnatowski
- Source
- Official Google Play page
SumLines is a captivating puzzle game available as an APK for Android devices that challenges your spatial reasoning and planning skills. The core objective is simple yet deeply engaging: you must connect a series of scattered islands by constructing bridges between them. Each island displays a specific number, which indicates exactly how many bridges must be connected to that particular landmass.
This constraint adds a layer of strategic depth, requiring you to think ahead and plan your moves carefully to ensure every island meets its bridge count requirement without exceeding it. The gameplay mechanics in SumLines are intuitive and elegant. To build a bridge, you simply draw a line connecting two distinct islands.
The game allows for double bridges between any two islands, which you can create by drawing a second line between the same pair. This feature adds versatility to your solutions, allowing for multiple valid paths to complete the puzzle. Conversely, if you make a mistake or wish to change your strategy, you can remove a bridge by drawing a line a third time between the same two islands, effectively canceling out the previous connection.
This undo capability ensures a smooth and frustration-free experience as you experiment with different configurations. As an Android APK, SumLines offers a lightweight and efficient way to enjoy these logic puzzles on your mobile device.
How to install the app
- Check the version, Android compatibility, developer and source in the app details block.
- Open the Downloads tab and use the official source or an available catalog link.
- Before installing, review app permissions and use only sources you trust.
Frequently asked questions
How do I connect islands in SumLines?
You connect islands by drawing a line between them. Each island shows a number indicating how many bridges must connect to it. You can build single or double bridges to meet these requirements.
Can I remove bridges in SumLines?
Yes, you can remove bridges by drawing a line a third time between the same two islands. This allows you to undo connections and adjust your strategy as you solve the puzzle.
Is SumLines free to play on Android?
Yes, SumLines is available as a free APK for Android devices. You can download and install it directly to enjoy the puzzle gameplay without any initial cost.
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