1) MUD game 
MorgenGrauen, abbreviated MG, is a German-language MUD, a text-based online role-playing game, founded in 1992 and opened to the public in 1993.{R|schreiber|mg-home|rgml} It is noted as popular in the MUD world, described at times as having an average of around 100 players online per day, with some days seeing 220 players.{R|schreiber|beck} It bil...