It's interesting that Armegeddon really has levels and experience points, they are actually abstracted into the skill system. Experience is gained through repeated use of skills and one advances to higher skill levels via some form of hidden tally, aka experience points. One abstraction is simply replaced with another. Sounds to me like just hiding the levels and experience points is sufficient to meet that part of RPI definition. And they've got mana and hit points too.

OTOH, ElendorMush is truely levelless and experience pointless. Neither hit points nor mana either. There are no other abstractions replacing those. The only difference is it does have OOC global channels. It certainly satisfies the intense role-playing criteria though. That's obvious through the extensive logs.

So where's the rest of this RPI mud definition that you can't remember? One would have thought being that it's so very important to you that you'd have a very clear idea of just exactly what it is. Maybe even give us lots of links to essays and definitions. I've read here that RPI muds can't have a who list, and a score command. Hmm... some do though.