Playfish is the creator of Restaurant City (on Facebook) and many other games on several social networking sites. Their website is located at Playfish.com. On November 9, 2009, Playfish was purchased by Electronic Arts; the press release can be found on Playfish's website. Playfish's social network games are free to play, supplemented by purchasing virtual currencies (such as Cooking Cash) with real money and occasionally unobtrusive ads.