The MUD's software is divided into two sections — the mudlib and the driver. The MUD is based on a from-scratch mudlib and runs on FluffOS, a fork of the MudOS driver, placing it in the LPMud family. The driver is largely open-source, with new releases usually made available quickly, while cut-down versions of the mudlib including most of the underlying features are occasionally released (most recently in 2003), allowing the use of most of the basic object classes and tools of the MUD.