August 25, 2004
Interactive Fiction.
Some excellent recent examples of the genre include Shrapnel and Spider and Web, and you can find many of the classics from the 80's here and here.
And there's plenty of tools around if you want to make your own.
Interactive Fiction was mentioned in this thread, too. via World Of Stuart.
This thread from livii also had stuff on an Hamlet text adventure. Now that's literally interactive fiction!