If ever there was a silent majority, it would be the ranks of casual gamers. These are people who play video games not for the challenge or the story, but rather for something to do at a 15-minute whack. They pick up, play, and put down. There are an awful lot of casual gamers, and their home is Facebook. According to data released by the company, around 235-million people play games on Facebook, an increase of 15% over last year. That’s an entire nation of casual gamers. The Verge has the story.