Onlamp/2004/11/24/interactive_fiction.html. Interactive fiction (IF) has variously been called "text adventures," hypertext fiction, or simply "adventure games," and for most people familiar with the genre, it evokes fond memories of brain-teasing puzzles at the dawn of home computers.
Zork, Colossal Cave, and hundreds of other similar products defined early computer gaming much like Pong and Pac-Man did for the arcade. Twenty years later, the state of the art in game programming has moved on, but IF has thrived in non-commercial form on the internet. Twine: a tool for creating interactive stories. The Text Adventure Development System, an Interactive Fiction authoring tool.