This second expansion for Race for the Galaxy delves into the growing conflict between the Rebel andImperium forces. This expansion increases player interaction by adding takeover rules that allow players to conquer military worlds in other players'tableaus. This expansion also includes, among thenew cards added, two player-submitted cards.Requires Race for the Galaxy to play. Race for the Galaxy: The Gathering Storm expansion is optional, but recommended and adds solo play. With only Race for the Galaxy: Rebel vs Imperium, min playersis 2 and max players is 5.