Strokka: One Line Puzzle

One line. Every cell. In order. 120 minimalist puzzles, no ads, fully offline.

Strokka is a quiet little puzzle with one rule: draw a single unbroken line that fills every cell.

Start at 1, visit every number in order, and cover the whole board without lifting your finger. Walls block your way. Took a wrong turn? Slide back along your line to rewind.

• 120 levels, from gentle 4x4 grids to devious 7x6 boards
• Pay once, play forever: no ads, no subscriptions, no accounts
• Works completely offline
• Soft haptics and a clean, minimal look
• Short sessions: solve one on the bus, or ten before bed

No timers. No lives. Just you, a grid, and one line.