Playdom continues its expansion and spends an not undisclosed fee on the acquisition of Offbeat creations –a game developer on the rise. Offbeat has produced 8 games for Facebook including its latest and most popular game, Super Farkle.

Until recently, Playdom was dominant on the social networking platform Myspace. 60% of its traffic was generated there while 40% came from Facebook. Offbeat Creations’ 1.5 monthly active user base (according to Insidesocialgames.com’ AppData) will change this ratio. With the acquisition Playdom will increase its presence on Facebook, adding new games to the existing portfolio of popular Facebook games such as Sorority Life, Tiki Farm, Mobsters 2, Lil Farm Life, Poker Palace or Tiki Resort.

The move comes shortly after having raised 43$ million funding in November 2009. At the time Playdom announced the funding would be used for acquisitions of other developers. Since Facebook’s recent ban of notifications, cross selling within existing popular games has gained in importance. Acquisitions of this kind confirm mountingdoubts over whether small developers will be able to compete under the current Facebook rules. It is likely that giant developers like Zynga or Playdom will continue to buy small developers to have a larger platform to cross-promote their games.