
LineLoop: One Line Puzzle
One-line drawing puzzle
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Free
In-App Purchases
About
LineLoop is a calm but brain-teasing one-line puzzle game.
In every level, draw all the lines in ONE continuous stroke — without lifting your finger. Each line is drawn exactly once; you can pass through nodes as many times as you like. Pull back to rewind your last line, so you can experiment freely.
• 500 unique puzzles that steadily get harder across every 10-level stage
• Finding the right start and the right order takes real planning — a wrong move strands you
• Familiar shapes (envelope, fish, cat, flower, bicycle, key…) sprinkled throughout
• Full-screen dark, neon aesthetic — sleek and easy on the eyes
• First 30 levels free; unlock everything with a single one-time purchase (NO subscription)
• Compete with your score on the Game Center leaderboard
• No ads; puzzles play offline (Game Center and purchases require internet)
A coffee break, a commute, or before bed: one puzzle in a couple of minutes to clear your head.
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What's New in LineLoop
1.0.2
August 18, 2026
Expanded to 500 levels. Improved puzzle variety and the 10-level difficulty curve. Added a Game Center leaderboard, more responsive touch controls, refreshed sounds, and interface improvements.
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In-App Purchases
$2.99
Unlock All Levels
Unlock all levels forever. One-time, no subscription.




