Does it have to be a MUD instead of a single-player RPG? Planescape: Torment is an old isometric game that has excellent writing, IMO. It's in the Baldur's Gate family of Infinity Engine games, but unlike its cousins, it has a very strong focus on narrative and almost no combat. It's really more like a point-and-click adventure with some RPG lite elements.
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Does it have to be a MUD instead of a single-player RPG? Planescape: Torment is an old isometric game that has excellent writing, IMO. It's in the Baldur's Gate family of Infinity Engine games, but unlike its cousins, it has a very strong focus on narrative and almost no combat. It's really more like a point-and-click adventure with some RPG lite elements.
https://www.planescape.com/
Doesn't have to be MUD. Thanks!
In that case another easy recommend is Disco Elysium. Fantastic writing and huge amounts of choice.
Maybe Citizen Sleeper too in that case