Once

si.robin.trace_once
FreeContains adsIn-app purchasesEveryone

Launch numbers

50+Installs
n/aRating
Mar 21, 2026Released
Oct 26, 2026Updated

What it is

Draw one continuous stroke. Cross every line exactly once.

A few points. A shape. One continuous stroke.ONCE is a minimalist logic puzzle about finding a route through a geometric board. Draw across every line exactly once, keeping your stroke clear of the points. A simple triangle can teach you the idea. A more intricate shape can make you stop and look again.PLAN YOUR PATHYour stroke crosses the puzzle's lines. Each crossing lights up the board and brings you closer t…

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