I read Tools of this WIKI.
It is written in this way there.
I do not know the engine of URU well.Here are a few tools the Guild of Writers uses for Age development. • Korman, the newest plugin for Blender used to create and publish Ages for all versions of Uru, offline and online,
• PlasmaMAX, Cyan's age creation plugin for 3ds Max, targeting MOULa.
• PyPRP, a plugin for Blender which allows you to create and publish your Ages for offline versions of Uru (such as Uru: Ages Beyond Myst and Uru: Complete Chronicles),
• PyPRP Age Importer, a tool to help you import all Ages into Blender,

Which is an engine used in URU CC and MOULa and Offline versions of Uru?
Is it right in this?
URU CC = PyPRP
MOULa = PyPRP
MOULa Fan Age = PlasmaMAX
Offline KI = Korman
I feel different from URU CC in an engine in MOULa.
Thanks,
Grape