GridLines - Version 1.06.1 GridLines is an absorbing square-forming puzzle game. Take turns drawing one line at a time on the game grid. Complete a square and you get the points, but be careful not to give away too many squares to your opponent. Play the 'classic' mode, a 'bonuses' mode where every square is worth something different or set up your perfect game using the 'custom' mode. Challenge your computer to a game of GridLines today !