From publisher blurb: A setting and adventure supplement for use with Warpstar! Explore the Omoron Star Cluster, a mysterious group of stars dominated for generations by Duke Petronius III of the Merchant Combine. Now the Duke is gone and his top lieutenants, the Viscounts, are preparing and scheming in a succession crisis that will redefine the cluster. This supplement contains: Part 1: A description of the Omoron Star Cluster. Part 2: Description of equipment, tools, and goods that are common in the Cluster. Part 3: The adventure Jolly Jubilee Jaunt, an introductory scenario to both Warpstar! and the Omoron Cluster. Part 4: The adventure Bad Business on Alcatrix IV brings the adventurers into the plots of the Viscounts vying for their place in the Cluster. Intrigue, schemes, and adventure await in the Omoron Cluster!