Link Flow is a free online puzzle game where you connect matching colored dots by drawing lines that fill every cell on the grid. Each level gives you a clean grid with pairs of colored points, and your job is to trace paths between them without crossing lines or leaving any squares empty. It sounds straightforward, but the challenge ramps up fast as grids grow larger and color pairs multiply.

What keeps Link Flow addictive is the satisfaction of cracking a board that stumped you for several attempts. The minimalist visuals cut out all distractions so you can focus purely on logic. A key tip: always start with the most constrained color pairs – the ones with the least room to maneuver – and work outward from there. The smooth line-drawing controls feel natural whether you're using a mouse or touchscreen, and there's no timer breathing down your neck, so you can think at your own pace.

Anyone who enjoys free color matching puzzle games, connect-the-dots brain teasers, or relaxing logic challenges will find plenty to like here. Link Flow works great as a quick mental workout during a break or a longer session when you want something calm but genuinely engaging. Fans of flow puzzle games, grid-filling challenges, and minimalist brain games will feel right at home – and since it plays instantly in your browser with no download required, there's zero friction to jump in.