1LINE - one-stroke puzzle game logo

1LINE - one-stroke puzzle game for iOS

By Sentaro Gamekawa Free Editors' Rating

Editors' Review

Download.com Staff May 1, 2018

1Line is a fun puzzle solving game that will stimulate your brain and sharpen your wits. The goal of the game is simple -- connect all the dots in a figure with just one line. It starts off with simple shapes, but with each stage and level the number of lines and difficulty of solving the puzzle increases.


Fun and mentally stimulating: 1Line is fun to play and helps you exercise/train your brain. It is also good for killing time or relieving stress.

Many stages: There are many levels and stages available and the complexity of the shapes increases with each one. There are hints available if you get stuck and need help.


Advertisements: Ads appear after each stage is completed and can be somewhat distracting to the gameplay.

Slow rise in difficulty: The game starts with stages that are very easy and gets challenging along the way, but to get to the more difficult ones you need to go through many simple and repetitive ones.

Bottom Line

If you're looking for a fun and mentally stimulating game, look no further! 1Line features many challenging stages and levels that will help you exercise your brain. The downsides are ads appearing each time you complete a stage and the slow increase in difficulty.

Full Specifications

What's new in version 1.1.0


Release September 14, 2017
Date Added September 14, 2017
Version 1.1.0

Operating Systems

Operating Systems iOS
Additional Requirements Compatible with: iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74


Total Downloads 192
Downloads Last Week 0
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Developer's Description

A brain-training puzzle in which you draw 1 line, that will sharpen your wits. In this free-to-play puzzle game, you merely have to draw one line. It is deceptively simple, yet profoundly deep. Play through the extensive stages, sharpening your wits as you have fun. Summary: A brain-training puzzle game that activates your mind as you play. When you've got a spare moment, on your daily commute, or before going to bed, why not experience what it feels like to activate you mind? How to play: There is only one rule: "Connect all the points with just one line. ". It doesn't matter where you start. There are some fiendishly tricky, complicated puzzles among the large number of stages. When you get stuck, make use of a hint. Stages: There are 10 levels, and a total of 500 stages. At first, it starts off with simple shapes, but each time your level increases, the number of lines increases, and it gets more and more complicated. You might think it's too easy early on. However, clearing the simple stages is also important. The hints to clearing the later, more complicated stages can all be found scattered through the simple stages. Some unique types of line, such as "one way lines" and "overlapping lines", can also be found throughout the stages. These special lines will encourage your imagination. Use this chance to activate your mind as you play, by trying to solve this free-to-play brain-training puzzle game. You're sure to get hooked.
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