considerations

Considerations:
A MUD client is basically an application using low level system services. Therefore, the small speed up and memory control achieved by a compiler and manually managing/optimizing memory is mostly irrelevant. See Two level applications - C and your favorite runtime.

MUD clients are multithtreaded applications. Thus, many MUD clients implemented in C crash due to segmentation fault. The best alternative I found was Lyntin. It supports many interfaces. However, the generality bloats the code and some code seemed a little outdated. The whole code is perfectly commented though and looks like a great project. Check it here.