Inform 7 is a design system to create interactive fiction (story based games) available for multiple platforms. It’s programming system is based on English language text, making it easy to pick up for beginners. However running the program can take a little bit of getting used to, as it compiles to be run on virtual machines Glulx or Z-code.

• The Inform 7 documentation on their website is very comprehensive
• Check out this Inform 7 Tutorial video by Zoroarrkk introducing the basics
• Get the tool here.