Nobilis is a role-playing game created by R. Sean Borgstrom in which the player characters are "Sovereign Powers" called Nobilis; each Nobilis is the personification of an abstract concept or class of things such as time, death, cars or communication. Unlike most role-playing games, Nobilis does not use dice or other random elements to determine the outcome of characters' actions, but instead uses a Karma-based system for task resolution.