Game Night is a short story by Chris Allinotte. It was published in The Oddville Press e-magazine (Vol.1 issue 5) in 2009.
A group of "bad luck" spirits converge every Friday the 13th to play games against the forces of "good luck". The winner of these contests shifts the balance of luck in the world to one side or another.
One of the spirits, however, wants something more, and will do anything to get it.