I'm not sure who all on here used to be into old school BBS games, or MUD games but I've been playing them off and on for going on 15 years, my latest favorite is Crusader Knights. Its kinda tough starting out and learning all the different things avalible to you, but after you get the hang of it, its quite addictive.
Crusader Knights
If anyone makes a character and needs help or advice my character is Marhault, you can message me in game or here on the forums.