This expansion was created for the Eon version of Cosmic Encounter. Add to the base game: 50 Flare cards (for the 50 alien powers in the basic game and Expansions 1,2, and 3) Rules for a 7th and 8th player Expands: Cosmic Encounter Other expansions: Cosmic Encounter: Expansion Set #1 Cosmic Encounter: Expansion Set #2 Cosmic Encounter: Expansion Set #3 Cosmic Encounter: Expansion Set #5 Cosmic Encounter: Expansion Set #6 Cosmic Encounter: Expansion Set #7 Cosmic Encounter: Expansion Set #8 Cosmic Encounter: Expansion Set #9