Utopia MUD
- A MUD with real-time chat, puzzles, quests, and a huge virtual world to explore.
- http://www.utopia.mudservices.com/

7 Degrees of Freedom
- An abermud with a host of additional features such as dynamic immortality and an auto-regeneration system.
- http://www.7dof.org.uk

Northern Lights AberMUD
- Northern Lights opened to the public on June 6th, 1992. Find both adventure and monsters on this AberMUD.
- http://www.ludd.luth.se/mud/aber/northern_lights.html

Delusion MUD
- A medieval Fantasy-MUD, covering about 150 different areas with a total of over 7000 different locations. Features sections on news, quests, areas, guides, screenshots and players.
- http://www.delusion.de