GaaS

So Bungie got Destiny back - and finally can run it as a proper game as a service, which Activision refuses to adapt for most of their products (aside from Blizzard). Mobile games go GaaS for some years. In fact, most successful games today are GaaS games, even GTA V or Red Dead 2 are managed as GaaS.

What is it? Look at this video from 2011 showing Knowledge from 1997 which again has been gathered for 20 years at that point. GaaS is old. The knowledge though is deluded due to the death of subscription MMO's - at least in the classic industry. To learn about GaaS all you need to do is to google - and watch talks from 1997 ;)