There was also "real" BBS software like wildcat and MajorBBS ...
I also remember some very, very active and high quality boards that ran citadel ... citadel was sort of the HN of the BBS world ... no ANSI, no fluff, just quick command keys and all high quality discussion.
Someone local to me had launched a pay-for-membership based MajorBBS that had something like 16 phone lines in. MajorBBS was the only thing I had seen that could support so many users at once. This was around the time I had stopped running my own BBS, before college.
This meant it could offer an active chat room, and it had a MUD game that everyone loved, called TeleArena.
For me, TeleArena was fun because I'd write scripts that would automate playing the game for me when I wasn't there.
I ran a 10-line worldgroup (majorbbs) in Boulder, circa 1996.
I had this weird software I licensed which let people play Doom against each other, over the phone line, simulating a local IPX network ... MPGS (Multiplayer game server) by a company called APCi.
I also remember some very, very active and high quality boards that ran citadel ... citadel was sort of the HN of the BBS world ... no ANSI, no fluff, just quick command keys and all high quality discussion.