Inform7

Inform 7 is an interactive fiction game design platform.  It is sophisticated enough for any complex game and simple enough for beginners to create and interesting interactive adventure.  Inform7 focuses game creation on writing and storytelling.  With a few simple commands you can create a sense of place and a compelling story that players will enjoy exploring.

Inform7 Website - Everything you ever wanted to know about IF design

Write with Inform7 - Create textual worlds - Tell Stories

Learn Inform7 - Follow the links here for tutorials, video, manuals and more

Teach Inform7 - Find links to teaching resources and examples here

Get Inform7 - Download Inform7 for Windows, Mac and Linux