But wait—are you sort of out of the loop on Fortnite? Well, to come up to speed, you could read "Fortnite phenomenon turns a game developer into a billionaire" from Bloomberg News, which helpfully sums up the game thusly:
Fortnite is a global phenomenon, played obsessively by children, rappers, professional athletes and middle-age accountants. It's a cartoonish, last-character-standing, fight-to-the-death battle royale where players thrash one another in a struggle for weapons, resources and survival on a shrinking, storm-ravaged island. ... While most games hit peak popularity shortly after launch, Fortnite was still drawing millions of new users six months on, thanks to a broadly appealing aesthetic that's more comic mischief than graphic violence. Celebrity fans such as rapper Drake and the Los Angeles Lakers' Josh Hart have pushed it further into mainstream consciousness.
Keep reading here.
Or you could just watch a 79-second gameplay trailer, released by Epic Games last September (to promote the "Battle Royale" update) on the official Fortnite channel on YouTube. You'll pretty much "get" Fortnite after watching this:
The bottom line, as seen in the trailer: "LAST ONE STANDING WINS."