[aurelius12]

Check out Iron Realms' MUD client. Nobody else's web client comes even close, I think.

https://nexus.ironrealms.com/Main_Page

[berkeleynerd]

https://writtenrealms.com/ client is pretty nice.

[Ataraxy]

This client is what I think of in my minds eye for a modern day MUD that still stays true to what a MUD is but has an accessible interface. Whoever designed the UI did a nice job.

[mikkom]

That looks interesting - is this a mud client of custom browser-based game?