[Students] taking ECON 201 at the University of North Carolina at Greensboro... don't even come to class, they just log in to the Internet. The entire microeconomics course is a video game that students play online to earn three college credits.
The Sarbonian aliens are named after economics professor Jeff Sarbaum.
"This is a game in which the students are literally immersed in a story. And they take on the role of a character," he explains. "So all of the reading material, all of the content, all of the examinations and homework, if you will, are built inside the engine of the game."
NPR : Aliens Teach University Economics Class