According to an interview with Polygon, League of Legends now has more than 100 million people logging in to play every month. That is an astonishing number. Particularly as its next nearest competitor, Dota 2, is reaching about 13 million a month.
You might have missed the League Of Legends Championship Series selling out Wembley last weekend because almost exactly no one reported on it. Check out the pictures if you want to see what arena sized gaming looks like.