The launch of EA's The Sims Social on Facebook is a major success, launched just a couple of weeks ago in late August, the game has already 51 million registered players, making it the second most popular Facebook game.
Appdata says that The Sims Social currently has over 51 million registered players, making it the second most popular current Facebook game. Only Zynga's Cityville has more players, with over 74 million users as of writing.
The Sims Social is perhaps the biggest competition that Zynga has ever had in the Facebook game space. Other Zynga games continue to remain extremely popular -- such as Empires and Allies -- with over 37 million players, Farmville with over 36 million players and Texas Hold'em Poker with over 35 million players. Gamasutra reports that another game now owned by EA, Zuma Blitz (originally developed by PopCap Games) is also quickly gaining popularity on Facebook. It currently has 5.7 million players.