As part of the ongoing raking over the coals of Richard Bartle for saying the obvious (yes, you can tell what side I am on in those debates!), Steve Danuser says over at Moorgard.com » Sacred Cows
I get tired of people implying that today’s MMOs owe their entire existence to the MUDs of yesteryear. Sorry, I disagree. The gameplay style of EQ or WoW is obviously influenced by MUDs, but I propose that MMOs would have evolved anyway.
And Ryan Shwayder posts in comments saying
Ultima Online is a direct descendant of what MUD? I’m not saying it isn’t, I’m just saying that I don’t know what particular MUD had a profound influence on that game. It seems like the MMO industry was born of different influences; EverQuest from DikiMuds, Ultima Online from Ultima games. Not all MMOs have a lot of direct comparisons to MUDs, so I think he’s right that they’d exist whether MUDs did or not.
Well…