Here are some examples of serious games. Because of the subject matter I would not be in favour of playing these games with students. Of course you as professionals know your students and your curriculum best. If you feel that these games fit and you have time to play them please share your experience with the session group..

Execution
Go ahead and try it. We will discuss how well you did during the session. Please save your strategies for the session discussion. Don't want to spoil the game for others.
http://www.venbrux.com/execution/Execution.zip


Darfur is Dying
http://www.darfurisdying.com/


Hush
http://interactive.usc.edu/members/jantonisse/2008/01/hush.html