This genre of puzzle game originated with “Same Game” in 1985. It has seen numerous iterations and immitations since then, the most famous on the web and on this site being Spore Cubes.

Spore Cubes fans, here’s a variation on the color clicking game: Click on large groups of the same color blocks to get the most points, but don’t click on single blocks! The game allows it, but it will cost you a life.