Knock Knock - One Line Drawing

A simple but addictive one-line puzzle game that’s completely free to play. Every Chapter is a unique, hand-crafted world to explore. During your commute, before you sleep… enjoy downtime with brain training. ▶ How to play There is only one rule: ""Connect all the points with just one line."" It doesn't matter where you start. When you get stuck, make use of a hint. ▶ FEATURES Interactive storytelling as well as puzzles. Get cute animals and special gifts. Beautiful classical music. Save and Share a wonderful illustration. Interactive animals. There are 3 Chapters more, and a total of 300 stages. We will continue to update.