Sequent was a DikuMUD

DikuMUD

DikuMUD is a multiplayer text-based role-playing game, which is a type of MUD. It was written in 1990 and 1991 by Sebastian Hammer, Tom Madsen, Katja Nyboe, Michael Seifert, and Hans Henrik Staerfeldt at DIKU —the department of computer science at the University of Copenhagen in Copenhagen,...

 based MUD

MUD

A MUD , pronounced , is a multiplayer real-time virtual world, with the term usually referring to text-based instances of these. MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat...

 running on a Sequent

Sequent Computer Systems

Sequent Computer Systems, or Sequent, was a computer company that designed and manufactured multiprocessing computer systems. They were among the pioneers in high-performance symmetric multiprocessing open systems, innovating in both hardware and software Sequent Computer Systems, or Sequent, was...

 multiprocessor machine at sequent.berkeley.edu. It was started in March 1991. Raja Kushalnagar ("Duke of Sequent") created Sequent from the original DikuMud codebase starting in January 1991 at the University of California, Berkeley

University of California, Berkeley

The University of California, Berkeley , is a teaching and research university established in 1868 and located in Berkeley, California, USA...

.

Notable MUDs running on the Sequent codebase include Sojourn

Sojourn (online game)

Sojourn was a MUD founded in 1993. During its lifespan, it was regarded as a leading source of innovation and content creation. At its height, it was extremely popular and content-rich...

 and its successor, TorilMUD

TorilMUD

TorilMUD is a MUD, a text-based online role-playing game, and is one of the oldest and largest of its kind.-Game characteristics:TorilMUD is set in the Forgotten Realms Dungeons & Dragons campaign setting...

.