Tap a hook, a tower top or a bundle to start. Every tap ties a knot. Tap the last knot again, or right-click, to finish. Twine only pulls: it goes slack when pushed.
Split the bundle
3 + 3
How much will it hold?
3 kg
Guess the load at which your bridge will break, then TEST. Within 10 % earns the 👁 engineer's eye on the level card.