The fifth expansion set for the Fantasy Flight Games version of Cosmic Encounter, Cosmic Dominion has the unique distinction of having been designed and developed by the fan base of Cosmic Encounter, comprising nearly two years of collaboration on both Facebook and BGG.

Cosmic Dominion will add more than two dozen new aliens to the FFG canon. These will include a few favorite classics from the good old days, with a large number of new alien powers contributed by a wide variety of fan designers.

Finally, the set is expected to include a brand-new Reward Deck that can stand alone or be mixed with the one in Cosmic Incursion, but that is composed almost entirely of new cards, many with interesting twists on standard ones.