So here's what I have to do.

Find a game just by searching the term serious game.
Play a few, if you can.
Pick the best one and the worse one.
Add a link for the best and the worst example you find on the discussion board.
Label the links best and worst and then add a paragraph after each explaining why they pass or fail.
Read one other student's discussion
Play their games.
Add a comments about each game that expresses how each game could be better.