
MMO pioneer Raph Koster, best known as Ultima Online's lead designer and Star Wars Galaxies creative director, says the enduring success of World of Warcraft has had a negative impact on the genre's diversity.
Chatting with GamesRadar+, Koster says MMOs have been "in a rut for a long time" and that "we haven't seen a lot of innovation in the space." Why? Well, because World of Warcraft became so massively popular that it made a new rulebook for MMO devs to follow.