CircleMUD

CircleMUD is a MUD codebase written by Jeremy Elson and first released on July 16, 1993. It is a derivative of DikuMUD that was written in 1990 by Katja Nyboe, Tom Madsen, Hans Henrik Staerfeldt, Michael Seifert and Sebastian Hammer.

Overview

CircleMUD is designed as a small and efficient MUD engine with a minimal set of gameplay features. The project's goal is to provide a stable and bug free codebase that developers can use as a blank slate for incorporating their own ideas.

CircleMUD is freely available, with restrictions provided by the CircleMUD license and the DikuMUD license.

Technical information

The last version of CircleMUD released by Jeremy Elson was 3.1. It was released on November 18, 2002.

CircleMUD is written completely in the C programming language. CircleMUD 3.1 has 40,538 lines, including comments and blank lines.

It lacks world building facilities or a scripting language for game events. These features are provided by third party patches.

CircleMUD 2.0 has a memory footprint of about 2MB.