Play draw lines.io Online Free

About This Game

A field of dots, and your pen. Connect every single dot to its partner using straight horizontal and vertical lines, with one golden rule: no two lines may cross. There is no required order and no single correct route — any solution that links all the pairs without overlapping counts as a win. That freedom is what makes it so absorbing: you sketch, erase mentally, and re-plan as the board tightens. Difficulty rises smoothly level by level, turning a simple premise into a genuinely deep logic workout for all ages.

How to Play

Click or tap one dot, then click its partner to draw a connecting line between them — horizontal or vertical only. Connect every pair without letting any two lines cross to complete the level. If you corner yourself, undo recent lines and reroute before continuing. Start with the pairs forced to the outside edges, since their paths are the most restricted.