A: Google the discipline you teach with "game" as an additional keyword - you will find a lot of resources to sort through. You need to play the game you pick before you recommend it to your students. Make sure that it is free, easy to understand with clear directions, and fun. I'd like to share the examples from our faculty to start with:
the Ayiti: cost of life game that Rhonda Philips integrates into her sustainability course:
http://costoflife.ning.com/
The other example is from Wendy Hollingshead Corbett:gamesforchange.org
Against All Odds - refugee survival game - http://www.playagainstallodds.com/