"The key is to generate emotion," explained Sundar. "Ideally, a good teacher can energize the class and make them much more emotionally invested through presentations, guest lectures, and group discussions. Video games can help achieve that in an already simulated way."
Flash Games A simple flash game generator you can use at no cost. Simply select the type of account you want and get started. You could also have your students create accounts to keep track of scores. From Southern Adventist University.