This week, 13,000 video game designers are gathering for the industry's biggest annual conference. The hot topic this year: independent games. These are games developed outside of the big corporations and exploring themes beyond medieval fantasy and futuristic shooter games.
The independent game developers tackle subjects you'd expect to find in serious cinema: a marriage in crisis, democracy, a rabbi questioning his faith.
Commentator Heather Chaplin is at the conference, and she says that the development of an independent games movement is a sign that the industry might be growing up.
Chaplin is co-author of Smartbomb: The Quest for Art, Entertainment, and Big Bucks in the Videogame Revolution.