This is an unofficial expansion for the game Star Fleet Battles Captain's Edition. This is the description on the cover: Includes – the following rules: - Far Side phasers - boomerang torpedoes - fuser mechanisms - boomerang racks - Indirigan special rules Historical background for the Indirigans: - Indirigans history - Far Side political map - Indirigan Tribe profiles - 4 historical scenarios Technical information including: - ship descriptions for 24 Indirigan units - a boomerang tracking chart - boomerang declaration cards Also included: 24 Companion SSDs Expands: Star Fleet Battles: Captain's Edition Basic Set