One Line - Curve Drawing How skillful are you at connecting dots all in one go without lifting your finger off your screen? This FREE-TO-PLAY drawing game is a simple brain-training puzzle that's extremely hard to put down! Find the best pathway to complete a shape, one stroke at a time! The best brain-training puzzle, free to play with tons of levels ✏️How to Play ►One simple rule: Mentally draw in & connect all the nails with one single rope ►The line drawing puzzle starts off quite easy, but don't get carried away, because each level can get very tricky! Please Note -One Line - Curve Drawing can be enjoyed on mobile phones & tablet PCs. -One Line - Curve Drawing contains ad-like banners, interstitials, videos and/or house ads. -One Line - Curve Drawing is free to play, however, you may purchase in-app items, such as Ad-Free & hints.