Editing Multi-user dungeon (section)

===Hourglass===
The first version of Hourglass was written by Yehuda Simmons and later Daniel James for ''[[Avalon: The Legend Lives]]'' which debuted in 1989 at the last of the London MUD mega Meets aptly named ''Adventure '89''{{R| BartleAdventure89}} and initially hosted on the IOWA system. Initially written in ARM assembly language on the [[Acorn Archimedes]] 440, in 1994 it made the leap from the venerable Archimedes to [[Debian]] Linux on the PC and later [[Red Hat]] where, other than shifting to [[Ubuntu (operating system)|Ubuntu]], it has remained ever since. An early version of Hourglass was also ported to the PC, named Vortex, by Ben Maizels in 1992.

Although written specifically for ''Avalon: The Legend Lives'', it went on to spawn a number of games, including ''Avalon: The First Age'', which ran from 1999 to 2014. The now defunct 1996 ''Age of Thrones'' and notably ''[[Achaea, Dreams of Divine Lands]]'' started life in Vortex prior to moving to its own Rapture engine. Hourglass continues to be developed as of 2016 and ''Avalon: The Legend Lives'' currently has 2,901,325 written words and 2,248,374 lines of game code (with 2,417,900 instructions). The original game came in at 1&nbsp;KB in 1989, compared to 102&nbsp;GB in January 2016.