Fastest-Growing Facebook Game Empire & Allies Overtakes FarmVille

[Every other week, Gamasutra examines the fastest growing Facebook games (according to monthly active users), looking at which titles and developers are having the most success attracting new players on the social network.] Less than a month after the game's launch, Zynga's Empires & Allies is already the second most popular game and app on Facebook behind CityVille with over 41 million total players, 8 million of that picked up in just the last week. The turn-based strategy title, which is also this week's fastest growing userbase, unseated another Zynga title, the long-reigning FarmVille (38 million total players), from that second place spot on the total audience leaderboard. Back to the fastest growing list, Gaia Online's Monster Galaxy added 3.1 million players for a total of 19.3 million. RockYou's Zoo World is the third biggest gainer after attracting 901,868 guests and bringing its total to 3.1 million. Digital Chocolate's Army Attack is at #4 with 891,134 new recruits and a 5 million total, followed by Disney/Playdom's Gardens of Time (+623,426, 14 million total) and Namco Bandai's Pac-Man (+388,558, 1.5 million total). Kabam's Global Warfare (+381,544, 1.6 million total), Metrogames' Tea4Friends (+364,544 2 million total), Social Point's Revienta el teclado (+328,950, 1 million total), and Mobscience's inFAMOUS Anarchy (+322,004, 684,641 total), fill out the rest of the top ten. The full list of the top 20 fastest growing Facebook games along with exact monthly active user counts, are as follows: All charts and data are courtesy of Facebook application metrics and trends site AppData.