Yes, port. This was one of the Zork Choose-Your-Own-Adventure Books.
Maybe it ruined it for me, because I had the actual book over a decade ago, and playing this reminded me of the book. What was nice is that it was actually made into an IF, where you can put in commands on your own. However, it doesn't add a great deal to the interactivity of the game, since it's really only direction commands until your next choose your own adventure choice.