User blog comment:Inferno Pendragon/Villains: Unleashed (MMO - yes, I've went insane)/@comment-3237716-20120828001043

http://lorehound.com/news/make-your-own-mmo/

I know you said text-based, however you may want to look at this - there are some ways to make a relative cheap (or even free) MMO, if you wish to do so.