World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0003514136
Reproduction Date:

Title: ColdMUD  
Author: World Heritage Encyclopedia
Language: English
Subject: ColdC, MUD trees, MUDs, Zone (video games), Mythicscape
Collection: Mud Servers
Publisher: World Heritage Encyclopedia


ColdMUD is a type of MUD server software, similar in many ways to MOO and CoolMUD, from which it is descended.[1] It is a text-based online virtual reality system to which multiple users are connected at the same time. Created by Greg Hudson, it has many similarities to both MOO and CoolMUD. However, there are many important differences from MOO in its embedded, domain-specific programming language, ColdC, and in its implementation of persistence and network services:

  • Like CoolMUD, but unlike MOO, ColdMUD's object database is fully disk-based. Whereas MOO's implementation of persistence is based on periodic "checkpoints" during which the complete state of the server's object memory is written to disk, CoolMUD keeps the majority of the object database on disk and keeps a cache of the most frequently used objects in memory, a strategy known as incremental persistence. The ColdMUD implementation of the disk-based object memory is based on Marcus Ranum's work from UnterMUD.
  • Unlike MOO, the embedded programming language (ColdC) can be used without using the runtime as a MUD (that is, network accessible) daemon.


Versions through 0.11.0 were written by Greg Hudson and released between 1993 and 1994. Version 0.10 was Hudson's last official release, and the last fully documented ColdMUD server. Colin McCormack assisted in the release of version 0.11.0, which eventually stabilized as 0.11.4.

Subsequently, Jordan Baker added some basic task scheduling primitives, and along with other modifications, this became an unofficial 0.12 version.

At this point Brandon Gillespie forked ColdMUD and it became known as "Genesis". Over the next few years, an active community of contributors made many bug fixes and improvements, but significantly changed the operation of many built-in functions and datatypes. Genesis came to be used by several online communities and games, especially a very large commercial MUD, "The Eternal City".


  1. ^  

External links

  • ColdMUD FAQ
  • ColdMUD Programmer's Reference
  • Site for "Genesis", a descendant of ColdMUD

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.