Dark Castle is a MUD that has been running (almost) continually since the early 90s. Branched from an early version of DIKU the code has been rewritten multiple times by many authors over the years. It has been a source of enjoyment and rivalry for many over the years. In 2020 it was decided to open-source it for the enjoyment of our players that remain, and for some nostalgia for those that return for a visit.
The game is available to login at via telnet at dcastle.org:6969 for the single-character port, or dcastle.org:6666 for the multiplaying/botting port.