Creation/Dev/Mudlib
From Graal Bible
The Mudlib provides Graal Kingdoms - and, by extension, Graal2002 Debug - with its extra Multi-User Dungeon options.
This library also extends GScript with a few extra commands that allow it to access and modify MUD accounts.
The Graal Kingdoms mudlib is derived from Crossfire.
With the recent advancements in GScript, some playerworlds are scripting their own MUD type system.