Habitable planets are the rarest, an thusly the most valuable resource in the galaxy. The human race luckily snatched up a handful of barely habitable rocks without encountering hostile life. With their indominable fighting spirit, humanity forced itself into the Galactic Legue the only way possable; defeating a league species. Expansion for legue members is an ordered procese: a world is discovered; contenents are assigned to members according to senority and prestige; each race lands its colonists; then the planet is sealed for 100 years. When the seals are lifted, the species which is first contacted by the legue gains posesion of the planet. These possesion wars are completely ruthless, and Xenocide is not unkown...