This is an expansion for the game Star Fleet Battles Captain's Edition. This is the description on the cover: Includes all the rules needed to for play: - the Argonians: a new star faring race - the energy flux: a powerful heavy weapon - plasma phasers: a coveted Argonian secret - the strobe: a unique ship system - hull rotation: a special movement ability - the Argonian nebula: a unique terrain feature - medically infectious zones: a bonus terrain rule Historical background for the Argonians: - Argonian history - a timeline - 10 historical scenarios Technical information including: - a fleet data table listing all Argonian ships - ship descriptions for 30 Argonian units - Argonian fighter rules & a carrier group SSD - all necessary annexes - the Argonian tournament cruiser Also included: 25 Companion SSDs Expands: Star Fleet Battles: Captain's Edition Basic Set