CircleMUD 3.1
CircleMUD was developed from DikuMUD (Gamma 0.0) by Jeremy "Ras" Elson at Johns Hopkins University's Department of Computer Science. All code unique to CircleMUD is protected under a copyright by the Trustees of the Johns Hopkins University. CircleMUD is freeware and can be downloaded via anonymous FTP from ftp.circlemud.org or ftp2.circlemud.org in pub/CircleMUD. Its author can be contacted at jelson@circlemud.org.
Patches
Zones and Scripts
There are too many to list who have contributed to the areas that make up Azereth. To name a few active builders: Marlin, Aearey, Amaterasu, Heia, Saki, Sensai, and Venom. Special thanks to all of those in the past who used to build but no longer do, such as Thyara, Haj, Covenant, Moonsorrow, and many more. A large special recognition goes to Tasis, who has contributed numerous scripts and help with the hardcode including the dragon floaties and katanas, amongst endless support to those who wish to learn scripting. A handful of our lesser used zones are composed of old stock areas and many of them are without authors. If you know who an author was of one of the zones that have no creator, please let an Immortal know so that they may be credited. Quite a few have also been recently modified and changed to the point of non-recognition and those credits go to those who have revamped the zone, but all credit is meant where it is due and we would gladly put their name up there. Zone credits can be seen on the area list.

