The video game industry tracker NPD Group has occasional releases throughout the year, tallying up things from the month's top-selling games to console vs. console sales to how many NES Classic Editions flew off the shelves back in November. But it's the annual revenue generation that draws real attention as a loose report card for the industry, and last year's has just come out. In 2016, NPD estimates that consumers spent $30.4 billion on games and accessories, which is a modest $200 million more than in 2015.