The gaming industry, at least for the most part, is based on trends and cycles. A new game comes out, everyone plays it for a while, it gets its time in the spotlight, and from there they move on to a title that will fill the gap.
Then in 2017 we met a new phenomenon: Battle Royale. The last one to survive in an arena of 100 players - wins. The madness did start its first steps with PlayerUnknown's Battlegrounds (and from now on for convenience we will call it by its abbreviated and official name: PUBG )