Economics is no game...or is it?  Interested students can now take an online course from The University of North Carolina at Greensboro that is a game.  Econ 201 is an introductory Microeconomics course.  And if you successfully complete the game, you earn credit.  Robert M. Brown, Ph.D.,  Dean of the Division of Continual Learning at UNCG, explains the game at Campus Technology:

The game’s premise is that an alien craft crash-lands on a futuristic, post-apocalyptic Earth. In order to survive and create a prosperous society, the extraterrestrials must learn the basic principles of economics – from scarcity, savings, and investments to trade, foreign aid, and sustainable growth. The game covers the same concepts as the face-to-face micr'economics course at UNCG, but also integrates interdisciplinary concepts from history, ethics, math, biology, and anthropology.

Brown calls gaming "problem-based learning," and argues that this course, unlike other intro courses, forces students to apply "newly learned theory."  

Take a look at the game by clicking here.  And read Brown's article in Campus Technology here

(HT: Brad DeLong)