Gettysburg College:

Students create text-based “interactive fiction” games that are rigorously derived from archaeological data and filled with references to Viking and other cultures. The games describe a scene or object in detail, then ask players to make a choice, such as “go east” or “take sword.” Each decision leads to a new set of possibilities. “From an English professor’s point of view, this is really creative writing,” said Fee.

Don’t forget the red lutkefish puzzle.