Stars collide in our Galaxy to form new stars and in Cosmic Words, stars collide to form new words. The game play has been tastefully designed to a galaxy theme where each character is a small star and stars join to form bigger stars -- the bigger the star (carrying a valid word) the more points you get. After creating a valid word, you can double tap on the star to earn star points and the star will disappear to make room for more stars.
New Stars are born carrying new characters every few seconds (or you can double tap in space to get a new star - on demand).
In casual mode just drag the star and aim at the other star to merge. In other modes bounce the star of the wall to cause collision.
This game tests your vocabulary, requires quick reaction to handle new born stars and also tests your aiming capability. Have fun creating your own new word galaxies.