1977 · Eon Products, Inc. (Eon)
Add to the base game:
10 new alien powers (Anti-matter, Calculator, Diplomat, Filch, Gambler, Insect, Judge, Machine, Miser, Sorcerer)
1 system hex, 4 star discs, and 20 tokens for a sixth player (originally gold, later purple)
Expands:
Cosmic Encounter
Other expansions:
Cosmic Encounter: Expansion Set #1
Cosmic Encounter: Expansion Set #3
Cosmic Encounter: Expansion Set #4
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
