One Line is a simple yet challenging puzzle game, with one and only rule. Connect the dots along with all the lines to complete the puzzle using 1 stroke only. More than 140 puzzles included, from easy to complex levels. More puzzles will be added in the future. You can start from any of the dots, then connect along the lines. You have to connect dots using all the lines available. Some lines are one way only, for some you have to go twice. If you get stuck, hints are available. Hints are limited, so use them wisely. You can get hints by viewing ads. The game is supported by ads. You can remove ads completely by purchasing, though you have to get hints by viewing ads. Your feedbacks are greatly appreciated.