These MUD's focus on social interaction, and include TinyMUD's and their descendants. Named after the university at which it was written, Datalogisk Institut Koebenhavns Universitet, or Department of Datalogy, University of Copenhagen.
Wizards can add to the database.
Developed from DikuMUD, with various improvements. Based on MOO, created by Pavel Curtis, and adds features and stability. One of the most popular combat MUD's, written by Lars Pensjl among others. A MUD developed using the object-oriented approach, developed by Stephen White. MOOs include a programming language.