Eminent Domain is an empire building game in which your empire's abilities are based on a deck of Role cards. At the beginning of the game each player has the same deck of cards. Every turn you must choose a role to execute and in doing so you will add one of those Role cards to your deck. When executing a role,you may Boost its affect by playing cards out of your hand matching the role you have chosen. For instance, the more research done by your empire, the better your empire gets at doing research - because there will be more research cards in your deck!
During the game players gain influence throughout the universe by expanding their empire, doing research, and trading. You'll survey the find planets, Colonize them or use Warfare to incorporate them into your empire and gain access to their abilities and influence. The player whose empire has the most influence at the end of the game will rule the galaxy!