Released last summer, this simple-yet-addictive game—made by a organization with three employees—became the App Store's No. 1 free app over Christmas, and its top-grossing app as well. The blockbuster hit can be a reminder that on the planet of gaming apps, the little guy can contend with giants of the entertainment world. Sixteen million people play "Temple Run" every day, according to its maker Imangi Studios. That compares with the 21 million people who played one of several mobile games created by top game maker Zynga at least once per day in the first quarter of 2012.
