https://www.cnbc.com/2018/05/25/fortnite-video-games-esports.html

Chances are you've heard of a video game called "Fortnite."

It's a massively popular game that is generating hundreds of millions of dollars each month in revenue. But unlike other popular online games like Activision Blizzard's "Call of Duty" franchise, "Fortnite" is free to play.