One Liner’s one-stroke path puzzles
One Liner drops you into a Puzzle challenge built around a single rule: connect the marked route without lifting your finger or mouse. The screen shows the shape you need to copy, and the fun comes from figuring out which turns can be crossed only once, all with an upbeat rhythm behind the action.
Trace the outline without doubling back
Each stage asks you to follow the gray track in one continuous motion, so every corner matters. Miss a branch or revisit a segment and you have to rethink the route, which makes the level design more tactical than it first looks. If you like line-based challenges, lines are the whole point here.
Learn the pattern through the interactive tutorial
The built-in tutorial introduces the draw-once rule before the tougher layouts start appearing. That helps you read the shape faster, especially when the figure becomes less obvious and the path feels tighter. It also keeps the game educational in a practical way, since you’re training visual planning as you go.
More than 120 levels to work through
There are over 120 stages to clear, so you keep meeting new path layouts instead of repeating the same trick. The later puzzles lean harder on memory and careful route choice, and that makes each solved screen feel like a clean bit of drawing. For another close mechanical match, Tiny Sketch also focuses on sketching shapes, while Happy Glass uses drawn lines to solve a physical puzzle.
The bright presentation and rhythmic soundtrack give the tracing a lively pace, and the whole thing runs as a browser game with no download and no signup.