CataclysmLD VS evennia

In the sidebar for this sub under the 'other projects' section there is an entry for Cataclysm: Looming Darkness; a multiplayer rewrite of the game. As I haven't tested that fork myself I can't vouch for how complete/actively developed it is, it's probably your best bet for a multiplayer cata.

Here's the multiplayer project https://github.com/stolencatkarma/CataclysmLD see how active it is.

Cataclysm: Looming Darkness is also a thing that is in development, however, it is very barebones right now and uses a MUD in order to function. (https://github.com/stolencatkarma/CataclysmLD)

There is a version of the game being devloped as a MUD or a MUSH or something like that where the game plays out in live action on multiplayer. Like most games being developed, I don't expect it to ever go anywhere or come close to completion. But it does exist and that's impressive enough. The game systems are completely rebuilt to be tailored around multiplayer. I don't believe there is any way to connect to a public test server for the game yet, but this is the repository for it. https://github.com/stolencatkarma/CataclysmLD

Not yet, there's a multiplayer project in the works though - Cataclysm: Looming Darkness

Evennia - MUD server (text-based MMORPG). Python

Another good mud server and open source in python is https://www.evennia.com/

Evennia open-source game engine: https://www.evennia.com

Evennia, a MUD written in python

If you want to get something up and running quickly, while still using python to build out your world/campaign check out Evennia.

Evennia (https://www.evennia.com/) is quite easy to start with and flexible.

Python is very easy for beginners to pick up and there is a Python based framework for MUDs called Evennia that you can use once you get started.