This expansion was created for the Eon version of Cosmic Encounter.Add to the base game: 14 new powers Expands: Cosmic Encounter Other expansions: Cosmic Encounter - Eon Expansion #1 Cosmic Encounter - Eon Expansion #2 Cosmic Encounter - Eon Expansion #3 Cosmic Encounter - Eon Expansion #4 Cosmic Encounter - Eon Expansion #5 Cosmic Encounter - Eon Expansion #6 Cosmic Encounter - Eon Expansion #8 Cosmic Encounter - Eon Expansion #9 - BoardGameGeek