Editing Multi-user dungeon (section)

== Development ==
{{Redirect|CDLIB|the online catalog|California Digital Library}}
Within a MUD's technical infrastructure, a mudlib (concatenation of "MUD library")<ref name="bartle-mudlib" /><ref name="busey" /> defines the rules of the in-game world.<ref name="bartle-physics" /> Examples of mudlibs include [[Ain Soph Mudlib]], [[CD gamedriver and mudlib|CDlib]],<ref name="reese1">{{cite web
 |last=Reese 
 |first=George 
 |url=http://www.rpgmud.com/lpmud_timeline.htm 
 |title=LPMud Timeline 
 |date=1996-03-11 
 |access-date=2010-04-18 
 |quote=Late 1991 ¶ After the retirement of Lars from _Genesis_, the _Genesis_ admins move to create the first LPMud-derived server, CD. CD stands for Chalmers Datorforening, Swedish for Chalmers Computing Club, where _Genesis_ and _Igor_ existed. In spite of his retirement from _Genesis_, Lars continued to develop LPMud.ad 
 |url-status=dead 
 |archive-url=https://web.archive.org/web/20120226122409/http://www.rpgmud.com/lpmud_timeline.htm 
 |archive-date=2012-02-26 
}}</ref> [[Discworld Mudlib]], [[Lima Mudlib]],<ref name="crat">{{cite web
 | url = http://lpmuds.net/forum/index.php?topic=899.0
 | title = Full Lima Bundle Released
 | work = lpmuds.net
 | date = 2009-01-24
 | access-date = 2010-05-17
 | archive-date = March 12, 2016
 | archive-url = https://web.archive.org/web/20160312071241/http://lpmuds.net/forum/index.php?topic=899.0
 | url-status = dead
 }}</ref> [[LPUniversity Mudlib]], [[MorgenGrauen Mudlib]], [[Nightmare Mudlib]], and [[TMI Mudlib]].

MUDs that include [[object-oriented programming]] can add complex features, such as adding elements to the game world and giving users more ways to interact with it, that MUDs without it cannot.<ref name=":022" />