Video games have been a widespread phenomenon since the 1980s. To celebrate National Video Games Day, here are some statistics about gamers. The Entertainment Software Association found that 46% of gamers are female while 54% are male. The ESA also reports that the average age of female gamers is 34 years old while it's 32 years old for men. 65% of Americans play video games. 'Casual' is the most popular video game genre, followed by the action genre and the shooter genre.