Klax is an action/puzzle game where you need to catch assorted color falling tiles and create rows, columns, or diagonals of a single color. The story revolves around your character's goal to clear the screen by matching colors in various patterns.
The gameplay involves catching the falling tiles and creating lines of the same color. Each level presents a new pattern that requires you to think ahead. As you progress through the game, the tiles fall faster, more at a time, and in an increasing number of colors. You'll need to adapt your strategy to clear each level.