Tirwik it's a puzzle game in which you have to form color lines using boxes that change color every time you select a line. This boxes are set in a 5x5 board and change from red to yellow, to green and then back to red. You have 3 different game modes: Normal (get as much points as you can before your turns run out), Endless (play against your patience and get as much points as you can) or Board (try to set all the squares one same color in as few turns as you can).