Connect One Line is a hypercasual puzzle game where your goal is simple: draw one continuous line that passes through every point on the grid without lifting your finger or retracing your path. Each level looks easy at first glance, but the challenge ramps up fast as the grids grow larger and the paths get trickier to figure out.

The game rewards careful thinking over speed. Before you start drawing, take a second to scan the board and plan your route. Dead ends are the biggest trap here — committing to the wrong direction early can lock you out of a clean solution. Levels are short enough to replay quickly, which makes cracking a stubborn puzzle genuinely satisfying. The clean, minimal visuals keep the focus entirely on the logic, with no distractions pulling your attention away from solving.

Connect One Line is a great pick for fans of one-line drawing games, dot connector puzzles, and brain teaser games online. If you enjoy free puzzle games you can play in your browser without downloading anything, this fits perfectly into a quick break or a longer session when you want something low-key but mentally engaging. It works well on both desktop and mobile browsers, making it one of those easy-to-access free online skill games you can return to whenever you have a few minutes to spare.