>I really wish MUDs were still a thing.

They aren't as popular as they once were, but they are still out there. One of the hardest-core OG muds, Armageddon Mud (which was based on the Dark Sun world) recently went down, but the founders have been working on a new reboot with a totally new code base. Looks interesting (I played the original but have no connection with the MUD itself). They are aiming to launch BETA in the relatively near future if anyone wants to check it out.

https://www.zalanthas.org/

There are also some OG muds still chugging along after 30+ years, like the hardcore PVP mud Duris:Land of Bloodlust. The player base has dwindled mightily over the years but people still play and it is a load of fun to explore, if MUDs are your thing, as it incredibly expansive having been in active development for decades.

https://www.durismud.com/