It's a huge game with a very advanced parser, but it only runs on the HP e3000 and the source code has never been released. This is another one I'd like to eventually see the source code to, but I tried contacting one of the authors and got no reply.
If you want to try your hand at another obscure, early text adventure, there's a version of Warp (early 1980s) hosted here:
http://empire.openmpe.com/empire/other_games.html
(You have to access it through telnet.)
It's a huge game with a very advanced parser, but it only runs on the HP e3000 and the source code has never been released. This is another one I'd like to eventually see the source code to, but I tried contacting one of the authors and got no reply.