One Line: Dot Connect Puzzle

Can you fill the whole grid… in ONE LINE? 🔴 One Line is a beautifully simple yet brain-teasing path puzzle. Start at dot 1, drag your finger to connect the dots in order — 1, 2, 3 and beyond — and draw a single unbroken line that fills every single cell of the grid. No cell left empty, no number out of order. Easy to learn, seriously addictive to master. Whether you have 30 seconds in a queue or a quiet evening to unwind, One Line gives your brain the perfect calming workout. One puzzle, one line, endless satisfaction. ▶ HOW TO PLAY • Touch the dot numbered 1 to begin. • Drag up, down, left or right to neighbouring cells. • Pass through the dots in the correct order: 1 → 2 → 3 … • Fill EVERY cell on the board to solve the puzzle. • Made a wrong turn? Just drag back over your path to undo it. ✨ FEATURES • Hundreds of hand-crafted, always-solvable puzzles • Smooth one-finger drag controls that feel just right • Grids that grow from cosy 4x4 to challenging 8x8 • Clean, glossy, modern design that's easy on the eyes • Track your time and earn up to 3 stars per level • Undo, restart or shuffle in a new puzzle any time • 100% offline — play anywhere, no Wi-Fi needed • Quick to pick up, hard to put down 🧠 GOOD FOR YOUR BRAIN One Line is a relaxing brain game that sharpens logic, planning and focus. Every level has a guaranteed solution, so it's always about the challenge — never luck. A perfect daily puzzle to keep your mind fresh. Think you can trace the perfect path? Connect the dots, fill the grid, and see how fast you can finish. Download One Line now — it's free! 🎉