MUD Client Applications
You can connect to most MUD's over the Internet with a simple Telnet program, which is how many were orginally accessed. However, Telnet applications may not wrap text around onto the next line very well, and incoming messages might get printed in the middle of a message that you are typing, so it provides a basic capability at best.
There are a range of specialized MUD client applications that solve the interface problems with Telnet, and also provide extra capabilities such as enabling you to run macros, highlight certain types of information, and other features. The following resources provide access to MUD client applications.