Zynga, the famous online game maker, who has brought Facebook game titles such as Mafia Wars, Farmville, CityVille, etc., was never new to issues of copyright infringement. Their games were according to other developers, were copycat of their originals. And now, EA has sued them for copying 'The Sims Social' on the form of a new game 'The Ville'.
According to Electronic Arts, 'The Ville' is similar to their game which was launched more than a year ago.
Zynga, on the other hand, says that EA's newly-launched social game, 'SimCity Social' has resemblance to 'CityVille'. Both company says they will defend their rights.
I haven't played 'The Ville' yet, but I have played 'The Sims Social', so feel free to comment if they really have similarities.