Core Gaming 2014, the latest report from The NPD Group, states there are 34 million core gamers in the U.S. spending an average of 22 hours per week playing video games.

These core gamers are defined as individuals who play video games five or more hours per week on a PlayStation 3, PlayStation 4, Xbox 360, Xbox One, PC, or Mac. They play action, adventure, fighting, flight, massively multiplayer, racing, real time strategy, role-playing, shooter, or sport genres.

While core gamers are most likely to play on consoles and computers, phones and mobile devices are also a popular method of play by two-thirds of these gamers, according to the data. In addition, close to 70 percent of core gamers play multiplayer games either regularly or occasionally, and 74 percent would opt for the physical format over digital if the price were the same. The preference for digital is up 5 percentage points to 26 percent this year.