Link Flow

Link Flow gives you a board of dots and a pattern to recreate, and asks you to draw it in connected lines. The premise takes about five seconds to understand, which is the point — everything interesting happens in the execution rather than in learning the rules. The game leans deliberately plain. There is no ornamentation around the puzzle itself, just the dots, your lines, and an undo button for when a route turns out wrong. Complexity builds level by level rather than arriving all at once, so the difficulty comes from patterns that need more thinking ahead, not from new mechanics being bolted on. It sits comfortably in the category of puzzle you can play in short bursts without losing your place.