In 2011-2012, an international partnership developed a "game" for secondary schools students focussed on media, diversity and LGBT issues.
The "game" consists of interactive lessons for 6 tot 12 weeks which the teacher of trainer can tailor to the youth group. The "game" is directed towards the production of a mini-campaign to promote human rights by using media. The minimum product is a human rights video commercial. The game end with a contest between the teams who worked on mini-campaigns and an award for the best video (and campaign).
Here are the manuals:
Exercise 3.1: LGBT - A Left-Handed Lesson:
More information on the project that developed Voice OUT: The NISO Project: a High School Game to Combat Homophobia