MIT, yes, the Massachusets Institute of Technology, is providing a free online course via EdX that states:
A practical introduction to game design and game design concepts, emphasizing the basic tools of game design: paper and digital prototyping, design iteration, and user testing.
The three people presenting the course seem to have good bona fides. I’m signed up, and it will be interesting to see how they divide the course between computer programming and cardboard game design. Should be fun!