>>brayth+(OP)
This is kind of weird to see because I can remember back in the 90's doing Infocom re-releases at Activision. Activision bought Infocom in the late 80's, so in theory they owned all the source code to games like Zork. I remember going through back up of old Infocom drives, there were some really good design ideas. But not the actual source code for their text adventure engine.