Game Design

IF, AI, and the Confabulating-arranger Model of Interactive Fiction - http://www.robotwisdom.com/ai/ifdesign.html
Article by Jorn Barger about the confabulating-arranger model of IF.

No Place Like Home - http://www.firthworks.com/roger/cloak/index.html
Works of interactive fiction created using Inform and an exercise in implementing the same game in different systems.

Object Oriented Games - http://www-cs-students.stanford.edu/~amitp/Articles/ObjectOrientedGames.html
Essay by David Librik on the design of a new object-oriented system for adventure games

The Golden Skull - learning multimedia TADS - http://www.tela.bc.ca/tads/authoring/golden-skull/
A miniature game designed to demonstrate some of the new capabilities of multimedia TADS

The TADS Page - http://www.tela.bc.ca/tads/
Authoring environment for writing text adventures.

XYZZYnews: The Art of the Puzzle - http://www.xyzzynews.com/xyzzy.14g.html
Three accomplished IF authors discuss the art of creating puzzles for a game.