Play Merge Fill Online Free

About This Game

Merge Fill is a flow-style fill puzzle: connect the colored dots by filling the entire board with their lines. Think ahead, drag the line through empty space, and complete each level by covering every single cell without crossing or orphaning a color. It is the one-stroke drawing puzzle genre in its cleanest form, and the difficulty ramps honestly — early boards teach the logic, later boards demand you plan the whole route before the first drag. No timer, no pressure, just pure filling logic. A quiet, satisfying brain workout. Free in your browser, instantly playable on any phone.

How to Play

Drag from one colored dot to its matching dot; the line fills every cell it passes through. Fill the entire board — every cell must be covered by some line, no crossings, no orphans. If a color has nowhere to grow, restart the level and try a different route; the levels are solvable, but not by every first guess. Tip: fill from the dots outward toward the largest empty region; long lines belong in open space, and corners are the last thing you fill.