Retro RPG: Serenity

        Serenity Role Playing Game is a science fiction role-playing game released in 2005 and set in the universe of the movie Serenity. It was produced by Margaret Weis Productions, Ltd, and its mechanics were the first iteration of the Cortex System. It won an Origins Award for best RPG in 2005 and Margaret Weis' license came to an end on January 31, 2011, and in Feb 2013 it was replaced by the Firefly RPG.