Just a Line: One Line Puzzle

Draw the whole shape in one line — without lifting your finger and without tracing any line twice.

Just a Line is a classic one-line drawing puzzle. The rules take seconds to learn, but every level hides one path that covers every line, and finding it is the fun part. Start with simple triangles and work up to tangled shapes that will make you stop and think. [N]+ levels and counting.

WHO IT'S FOR
- Anyone who wants a quick brain teaser for a coffee break
- Fans of one-stroke, no-lift, single-line puzzle games
- Players who like a satisfying, low-pressure challenge

KEY FEATURES
- Simple, relaxing one-touch controls
- [N]+ levels that grow from easy warm-ups to real brain-benders
- Two modes: Normal Mode to play at your own pace, and Master Mode against the clock
- Stuck on a shape? Tap for a hint
- Earn up to 3 stars on every level
- Train logic, focus and spatial thinking in short sessions
- Available in English, Japanese and Korean

HOW TO PLAY
1. Tap a dot to start.
2. Swipe along a line to connect it to the next dot.
3. Cover every line to complete the shape.
4. You can't draw over the same line twice — plan your route!

Perfect for a quick coffee break or winding down before bed. How many shapes can you draw with just one line?

Questions or feedback? Reach us any time through the App Store support link.