Mesa, Ariz. - FireSky, a newly established video game publisher, said on Thursday that has signed a deal to publish "Stargate Worlds," a massively multiplayer online roleplaying game based on the sci-fi franchise owned by MGM. The company, which currently has four studios working on a variety of titles, says it will focus on "SNAP" (Social Networks at Play) games -- "a unified theory of online gaming that combines social interactive, economies and game play across a variety of titles."