One Stroke App Icon

One Stroke

Line Puzzle Game

Download on the App Store
One Stroke gameplay screenshot One Stroke tutorial — Draw to Flip One Stroke tutorial — One Color Per Row

Designed to focus your mind

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Procedural Audio

Every sound is generated in real-time using sine waves. No audio files. Each stroke plays its own pentatonic melody.

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Adaptive Difficulty

The game tracks how you play and adjusts. Struggling? It eases up. Getting good? It pushes harder. Your experience is unique.

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Infinite Puzzles

Every level is procedurally generated with guaranteed solvability. You'll never run out of puzzles to solve.

Haptic Feedback

Feel every tile flip and row clear through precise haptics. The game responds to your touch on every interaction.

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Play Offline

No internet required. Perfect for commutes, flights, or winding down before bed.

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No Forced Ads

Ads only appear when you choose to watch one for a hint or revive. Nothing interrupts your gameplay.

Two ways to play

Puzzle Mode

  • Infinite procedurally generated levels
  • Difficulty adapts to your skill level
  • 3-tier hint system when you need help
  • Every puzzle is guaranteed solvable

Challenge Mode

  • Survive the rising tide of new rows
  • Clear rows to score — combos multiply points
  • Pace increases the longer you survive
  • Compete for your personal best

One rule. One path.

Free to play on iPhone.

Download on the App Store