They also have one of the first MMORPGs that hardly anyone knows about, and it's still around. The Realm (https://www.realmserver.com/)
I know this came after Meridian 59 and Everquest but I think it was before Ultima Online. Spent my elementary days playing it. I bet a lot of the players have passed on by now. I was (rule-breakingly) about 30+ years younger than everyone.
edit: Oh, 1996. I guess it was right when UOs alpha/beta came out. Wild. That definitely ate its lunch.
IIRC The Realm was a one time purchase whereas I needed my dads cc for UO... so that was limiting.
https://www.youtube.com/watch?v=l0N9bSR-zJs