This is the description on the cover:Includes all the rules needed to for play: - Krebiz X-1 improved technology - Krebiz X-1 ship descriptionsHistorical background for the Krebiz: - Two Krebiz campaign games: - The War of Annihilation, and - The Krebiz Scavenger HuntTechnical information including: - ship descriptions for the Krebiz X-1 units - Krebiz F&E build costs - Krebiz campaign notesAlso included: 32 pages of Companion SSDs displaying 35 Krebiz unitsExpands Star Fleet Battles - Captain's Edition Basic Set - BoardGameGeek