Stargate Worlds was to have been a new MMORPG being developed by industry newcomer Cheyenne Mountain Entertainment in association with the film and television media company MGM. The game would have allowed thousands of players to interact in an online universe based around Stargate SG-1 and, and perhaps in the future with an expansion pack, Stargate: Atlantis. Footage of Stargate Worlds was briefly seen at the beginning of the Stargate Universe premiere episode, "Air, Part 1". In the episode, the game was called Prometheus.