Wally's Obnoxious Program was a
MUD that was based in the world presented by the
Cross Dimension BBS Neverending Story system, and later the
Tweenlands Adventures role playing games. It was running
LPC, with a custom library set. It included such interesting features as "Player Oriented C", a programming language that allowed users to create their own objects.
Wally's Obnoxious Program had a number of iterations, running everywhere from SDSU, to computers at various ISPs like Intelegenesis and SNNI. It originally ran on a Sun Sparcstation 4, ending its life on a Pentium 60 Linux machine.