Recently, there have been reports of Facebook users seeing notifications about their friends playing certain games or apps. These notifications are not requests from the games, but from Facebook. This is Facebook’s testing initiative to re-engage past game players to their long, lost forgotten social apps, as well as encourage new users to discover new games. These new notifications will include a “Play Now” call-to-action, as previously seen in the “Games You May Like” side modules.
Facebook has been known to test new sidebar modules to promote the discovery of new games, but this new method will be more prominent since it will be at the top of the Facebook Page with the red notification icon.
For the time being, it seems like these testings are limited to a small group of users for the sake of gathering data before implementing these features more broadly.
Read more about the reporting here: http://www.insidefacebook.com/2012/06/11/facebook-tries-promoting-games-with-…