People are still playing EverQuest which is from 1999 and is still actively developed with new expansion packs coming out once a year. They have made a lot of changes to make it more friendly to solo players and small groups, and a lot of UI improvements, and you can play free with some limitations.
Here's a comment [1] with more details on what EQ is like nowadays.
Here's a comment [1] with more details on what EQ is like nowadays.
[1] https://news.ycombinator.com/item?id=31368588