- The MUD Connector
- One of the largest MUDlists available. Search by keyword, server type, game features or language. Reviews by players and TMC staff. - Book-themed SF/Fantasy M** - A listing of MUDs based on the works of an author of science fiction or fantasy. MUDs are grouped by series or author.
- Deutsche MUD-Liste - List of MUDs in Germany (written in English and German).
- Lysators MUDs - Listing of MUDs hosted at Lysator.
- Maelstrom: MU*/Talker Listing A to Z - Ratings, user counts, and an interface for user changes.
- MudNow - A new listing site where one can place their own listings and reviews of muds. Also has resources for the mud building.
- MUSH Warehouse: MUSH List - A list of over 200 MUSH games currently in operation. The list provides the normal alphabetical list as well as smaller lists divided by server type and theme types.
- Realms of the Imagination - A fairly small list devoted to MU*s with original themes.
- Rhal's Furry MU*s Connector - List of online multi-person shared environments (MUCKs, MUSHes) featuring anthropomorphics.
- The Complete Abermud List - A full listing of Abermuds and webpages, plus source code, MUD add-ons, telnet clients, zones, and Aber history.
- Top Mud Sites - MUDs ranked according to visitor votes.