[PyroLagus]

> This seems to be a niche that nothing else fills right now. It's much larger scale than tabletop D&D. Much more freeform and literary than MMOs that do have a large scale. And asynchronous except for the monthly deadline.

I think MUSHs fit all of those except asynchronous, but I think there might be asynchronous ones out there.

[JulianMorrison]

MU* isn't very similar at all to PBM. No arc, no plot, no NPCs, no aggregation, no adjudication. Supports far fewer people in any given scene. Generally only has one or two people logged in. Non-freeform "rooms". The scenery may be literary but the players generally are not.