Line by Line is a free arcade game developed by Georgy Sarkisyan, available for Android devices. The objective of the game is to move a ball and select a line of five or more balls of the same color. Once this is done, the balls disappear, freeing up space on the board. If this is not possible, three new balls appear. The game ends when the playing field is completely filled with balls.

The game features an undo option, allowing players to reverse their last move. The game is simple yet challenging, making it perfect for players of all ages. The graphics are simple and clean, with bright colors that are easy on the eyes. The game is easy to navigate, with a clean and straightforward interface, making it accessible to all players.

Overall, Line by Line is a classic game that will keep you entertained for hours. It's easy to learn but difficult to master, making it perfect for players who love a good challenge.