Roll for the Galaxy: Rivalry, the second expansion forÊRoll for the Galaxy, consists of three expansions in one box. First, it adds expansion content to the base game: 62 more game dice, a new die type, start factions, home worlds, and more than double the number of game tiles for the bag as inÊAmbition, the first expansion forÊRoll. This material is compatible withÊAmbition, but that expansion is not required to playÊRivalry. If you are familiar with the dice fromÊAmbition, then you can add this content and start playing immediately. (If not, you'll need to read about the new dice.) RivalryÊalso contains two optional game modules Ñ the Deal Game and the Orb Game Ñ which can be played separately or combined. These modules can also be combined with the goals inÊAmbition, although the publisher suggests not combining them all at once for new players!