Your civilization has grown to the edge of the known universe. To expand farther you'll need to explore exotic worlds and learn their language and customs. Mine foreign asteroids for valuable crystal and befriend alien cultures inÊEminent Domain: Exotica! ExoticaÊis an expansion toÊEminent DomainÊand cannot be played without the base game. The designer recommends that you play the base game several times before incorporating this expansion.