Orbius

Orbius is a game about combining orbs to increase your score. You start with the ability to drop four orbs of varying sizes; when two orbs of the same size touch, they create a bigger orb and increase your score.

As your score rises, you choose from multiple spells that make the game more difficult. Spells can increase orb sizes, cause explosions or force you to destroy existing orbs, changing each playthrough.