The company made profits (before certain items) of €848 million, or $964 million, on revenues of €2.109 billion, or $2.326 billion. That compares to earnings before income tax, depreciation, and amortization of €515 million, or $592 million, in 2014, on revenues of €1.545 billion, or $1.777 billion.
Clash of Clans, which debuted in August, 2012, accounted for the bulk of that revenue, though Supercell didn’t say how much. The game was ranked at either No. 1 or No. 2 during the course of 2015 on the top-grossing list. It’s not official, but it’s pretty clear that Clash of Clans is the most successful app in the world.

And to this day, my friends and I are declaring "war" every weekend. And yes, I am also playing their new game, Clash Royale. It's addicting and still fun.