Slitherlink

Slitherlink is a peaceful logic puzzle. Tap edges to draw a single closed
loop. Each number tells you how many of its 4 sides the loop uses.

● 150 hand-crafted puzzles across easy, medium and hard (5x5 up to 13x13)
● Tap an edge to cycle: line → ✕ (definitely off) → empty
● Undo and a smart hint always have your back
● A new Daily Puzzle every day
● No lives, no energy timers — just play
● Works fully offline

Logic only, so there's nothing to read — pick it up in any language.
Draw a single closed loop.