One Line - Connect the dots

One Line is a simple, relaxing and addictive brain puzzle: connect all the dots by drawing every line in a single stroke — without lifting your finger and without drawing a line twice. Easy to learn, hard to master. The first puzzles take seconds, the later ones will really make you think. FEATURES • 240+ handcrafted puzzles in 9 levels • Level 10: endless, freshly generated puzzles that are always solvable • Smart Hint that continues from where you are • Undo and restart anytime • Free coins every day • Clean, colorful design that is easy on the eyes • Play offline, no timer, no pressure • Available in 16 languages HOW TO PLAY Start from any dot and drag your finger along the lines. Every line must be drawn exactly once. Tip: if a dot has an odd number of lines, start or finish there! Train your logic, relax your mind and enjoy the satisfying feeling of solving it in one line.