Connect matching colors with pipe to create a Flow. Pair all colors, and cover the entire board to solve each puzzle and create total Flow Free. If you like tricky puzzles, Glow Lines is the perfect game for you. Your goal is to connect matching colors. Pair all colors and cover the entire board. Only with. Flow Free Online - click to play online. Flow Free Online is an addicting h5 puzzle game using your brain. In this game you need to find the dots.