The number one element of a good LMS is engagement.
Engagement is the key to the Learning Pyramid.
Active involvement becomes retained knowledge. Retained knowledge can be used and sustained over a long period of time, built upon, and is the foundation any professional needs to be successful in their chosen profession.
What factors constitute an engaging game? Rewards, winning or losing, otherwise the winning does not mean much… What else do you think constitutes an engaging game?
How much do you think fun is a factor of engagement?