One Line Puzzle Game

One Line Puzzle Game is a line drawing puzzle where every move matters. Connect the dots with one continuous stroke, complete each shape, and solve puzzles without lifting your finger or tracing the same line twice.

DRAW ONE LINE. CONNECT EVERY DOT.

Look at the nodes and lines, choose a starting point, then draw one unbroken path. Each puzzle is based on an Eulerian trail or circuit: use every edge exactly once to complete the drawing. Plan your route, think ahead and connect the whole shape.

EXPLORE UNLIMITED PUZZLE WORLDS

Enter a campaign of procedural puzzle realms, with 100 levels in each realm. Discover Nubela, Aurora, Ember, Crystal, Neon City, Zenith, Mirage, Cobalt, Verdant, Solstice, Obsidian and Prism. Each realm brings new geometric designs to solve.

15 GEOMETRIC PUZZLE SHAPES

Solve line and dot patterns including circles, hourglasses, spirals, zigzags, hearts, shields, infinity shapes, crescents, fish, crowns, butterflies, trefoil knots, grids, arrowheads and diamonds inside boxes.

TAKE ON THE DAILY CHALLENGE

Return for a new themed puzzle each day. Daily boards can feature star mandalas, butterflies, birds, rockets, hearts, crowns and more. Choose dates in the calendar, complete the daily puzzle, collect bonus rewards and build your daily streak.

TEST YOUR SKILLS IN ENDLESS SURVIVAL

Enter Endless Survival with 3 lives and a 100% ink capacity meter. Mistakes, undo actions, resets and hints use ink. When the ink runs out, you lose a life. Special modifiers add extra difficulty:

• Boss levels appear every five levels with more complex layouts.
• Fog of War hides 50% of edges until you visit or reveal them.
• One-Way Edges must be followed in the allowed direction.

Every board is checked for a valid solution before it is shown.

GET HELP WHEN YOU NEED IT

Stuck on a tricky line puzzle? Use a hint to see a useful next step. The game calculates a route from your current progress instead of relying on one fixed answer. If your path reaches a dead end, the hint system can detect it and guide the route back toward a solvable path.

EARN STARS, COINS AND REWARDS

Complete campaign levels to earn up to 3 stars. Your result depends on clear time and hint use. Collect stars to reach reward milestones and claim coins and hints. Visit the Hints Shop to choose a pack that suits your progress. Unlock achievements as you progress.

MAKE THE GAME YOURS WITH 15 THEMES

Choose from 15 visual themes: Classic Sky, Cosmic Indigo, Sunset Gold, Emerald Garden, Midnight Obsidian, Boreal Aurora, Crimson Nebula, Neon Cyberpunk, Desert Oasis, Oceanic Abyss, Lavender Mist, Volcanic Ash, Cherry Blossom, Mint Glacier and Vintage Sepia. Switch themes whenever you want.

TRACK YOUR PUZZLE PROGRESS

Check your statistics, including completed levels, best Endless streak, daily challenge streak, stars earned and current realm. Your progress and settings are saved on your device.

A SIMPLE RULE. MANY WAYS TO THINK.

Whether you call it a one line game, one line drawing puzzle, one stroke puzzle, dot connect game, brain game or logic puzzle, the goal is clear: connect every point in one continuous path. Plan your route and think ahead. Each arrangement asks you to study the whole path, spot possible dead ends and decide where your line should go next.

An interactive tutorial is available from Settings. Learn how to connect nodes, close a shape and solve a board with crossing lines. Sound and haptic feedback can be adjusted in Settings.

Enjoy brain teasers, geometric puzzles and daily challenges at your own pace.

Think ahead, test new paths and enjoy each puzzle as you work toward each solution.

Download One Line Puzzle Game and start connecting the dots, one stroke at a time.
Explore line puzzles, connect-the-dots challenges and single-stroke paths, and find a new way to solve each board with every move you make. Have fun!