Despite finding that Meteors copied the idea for Atari’s Asteroids game, the court ruled that none of the similarities were protected by copyright, since these elements were “unavoidable” in making a game about “a spaceship combatting space rocks”.[25][26] Atari v. Philips was another early ruling, where courts granted a preliminary injunction to stop sales of K.C. Munchkin! due to its similarities with Pac-Man.[27] Later courts have ruled that many game elements cannot be protected by copyright.