Sports app fans use these apps more than twice as much as the average app user.
Nearly 126 million people in the US will play a game on their mobile phone at least once a month.
Over two-thirds of web users played video games, and of that group, 53% did so weekly on a smartphone, tablet or other mobile device.
Social games are reaching a level of maturity, and therefore the numbers for monthly unique users are falling.
SuperData pegged the digital games market at $960 million at the beginning of this year, up from $691 million in January 2012.
Almost 4 in 10 PC users are now accessing content on their tablets and smart phones instead of their desktops.
US audiences for mobile games are growing rapidly, while audiences for social and online casual gaming are expected to grow more modestly.