Clergy vs Joy (2011) - http://archive.globalgamejam.org/2011/
Also know as "Clergymen from Inside Earth vs The Joy Empire From Hotter Space", Clergy vs Joy is a satirical two players shooting game about extinction, same sex love and contraceptives, and, while you are it, trying to convert the world population to your belief.
I made it in 48 hours with Pietro Righi Riva, Paolo Tajé and Ciro Continisio for the 2011 Global Game Jam in Verona. The theme of the jam was extinction, we decided to play a joke based on two stereotypical factions at war with each others. A war that no matter what, will inevitably condemn the human race if won by any side.