1LINE one-stroke puzzle game

"1LINE" is a free-to-play brain-training puzzle game that challenges you to connect all points with just one line. With 850 stages across 15 levels, the game starts off simple but increases in complexity as you advance. When stuck, use a hint to help solve fiendishly tricky puzzles and sharpen your wits. Play at your convenience, whether it's during your commute or before bed.