Link Line

Link Line is a grid-based puzzle game where the objective sounds deceptively simple: connect matching colored dots using lines that together fill every single cell on the board. No empty squares allowed, no crossing paths permitted.

The grids range from compact 5x5 arrangements to sprawling 10x10 boards, and the jump in difficulty between sizes is surprisingly steep. What starts as an approachable color-matching exercise gradually becomes a spatial reasoning challenge, where a single misplaced line forces you to rethink the entire board. Finding a solution that satisfies all three conditions simultaneously — full coverage, no intersections, all pairs connected — demands careful planning rather than trial and error.

Thousands of puzzles are available across multiple difficulty tiers, making it equally accessible to newcomers and dedicated puzzle solvers. The absence of timers keeps the experience relaxed and thoughtful, letting you work through each configuration at your own pace.