I should have said that the site contains information about a bunch of text based games - it's the site linked in the first post. Full name of the game is "The Dallas Quest." There's some source material on archive.org, including manuals. Do a search and it will come up. A manual would have been handy - all our games were pirated.
Never heard of Habitat and had no idea that was even possible at the time. We had a modem, but the nearest BBS was an expensive long distance call away. Bit late to the party, but I'll have to check it out.