One Line: Connect Puzzle

One Line is a simple-to-learn, hard-to-put-down one-stroke logic puzzle.

HOW TO PLAY
Start at 1 and pass through every number in order, drawing a single line that fills the whole board. The line cannot cross itself or go through walls, and every cell is visited exactly once. The line follows your finger as you drag.

FEATURES
• 1000 handcrafted levels from 5×5 to 8×8 with a smooth difficulty curve
• Every puzzle has exactly one solution: pure logic, no guessing
• Daily puzzle: the same puzzle for everyone, new every day. Keep your streak going to earn titles
• Three-star scoring: solve it, solve it in one clean pass (no hints, undo or backtracking), and beat the target time
• 41 achievement badges that reward coins
• Stuck? Use a hint. Earn coins just by playing
• 23 languages, including English, Español, Português, Français, Deutsch, 日本語 and 한국어
• No account needed, plays offline

ONE LINE PREMIUM
One-time purchase: remove ads, unlock every level and get 500 bonus coins.

A few minutes a day to sharpen focus and logical thinking. Take on level 1 now!

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://kennyhacrt.github.io/one-line-privacy/