Enlarge / Zork running on an Amiga at the Computerspielemuseum in Berlin, Germany. You are standing at the end of a road before a small brick building. That simple sentence first appeared on a PDP-10 mainframe in the 1970s, and the words marked the beginning of what we now know as interactive fiction. From the bare-bones text adventures of the 1980s to the heartfelt hypertext works of Twine creators, interactive fiction is an art form that continues to inspire a loyal audience. The community for...