FILE - In this March 25, 2009 file photo, Video game enthusiasts attend the Game Developers Conference, in San Francisco. The schedule for the 2013 GDC held March 25-29, illustrates the dramatic ... more 
FILE - In this March 25, 2009 file photo, Video game enthusiasts attend the Game Developers Conference, in San Francisco. The schedule for the 2013 GDC held March 25-29, illustrates the dramatic changes that have reshaped the gaming industry in recent years, an evolution that's as much about business models as it is about pixels. GDC organizers have added a summit on free-to-play games, planned talks on topics like crowd funding and micro-transactions and coordinated panels with such titles as "Making Money with Mobile Gaming" and "Why Won't FarmVille Go Away?" (AP Photo/Ben Margot, File) less 
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Associated Press | Photo By Ben Margot, File
Tue, Mar 26, 2013 9:08 AM EDT