Inform 6

Constant Story "Hello World";
Constant Headline "^An Interactive Fiction^";

Include "Parser";
Include "VerbLib";

[ Initialise;
    location = Library;
    "Hello World! Welcome to interactive fiction.";
];

Object Library "The Library"
  with description "A cozy library filled with books.",
  has light;

Object -> book "book"
  with name 'book',
       description "It's a thick book about programming languages.",
  has ;

[ Main;
    Initialise();
];

Include "Grammar";