Here's where to get the best MUD clients:
Get zMUD v5.5, $25 evaluation copy
http://www.zuggsoft.com/ - ZMUD (For Windows9x) (or zMUD v3.62, it's free!)
https://gmud32.software.informer.com/1.9/ - GMUD (For Windows9x)
(Get gmud3219.zip and gmud3219.txt)
https://tintin.mudhalla.net/download.php - TinTin++ (For Unix/Linux systems)
(Click on "Archive", click on the link ".gz", get Tintin++v1.79)