Orbius

You start with the ability to drop 4 orbs of varying sizes. Anytime an orb touches another of the same orb, a newer, bigger orb is created, and your score is increased. But as your score increases, you must choose between multiple spells that make the game even more difficult. Spells that increase orb sizes, cause explosions, or force you to destroy existing orbs are what make this game feel different every new playthrough.