A free app for Android, by Shared Fun.
This game is very simple but it will test your brain power and sharpen your mind. Your aim is to fill the blocks with a single line. You need to be extremely sharp and careful to avoid erasing the wrong blocks.
Fill is a simple but addictive one-line puzzle game that’s completely free to play! You will never stop playing it once you download it, no matter how challenging it is.
It's not a huge surprise that people love to play this kind of puzzle games. The one-line blocks are so easy to fill that anyone can play it, no matter if you’re a beginner or a master.