Trial By Trolley
A game by Cyanide & Happiness.
A Party Game of Moral Dilemmas and Trolley Murder. One player in the conductor, and must choose to send an out-of-control trolley down one of two tracks, crushing everyone in it's path. Everyone splits into two teams and tries to convince the conductor to spare everyone on their track, and kill everyone on the other track.
It's murderous fun for the whole family!