From the back of the box:
Far from the sumptuousness of palaces, in the darkest alleyways, gold changes hands, information is shared, alliances forged and secrets betrayed.
This expansiones offers a new type of cards: City cards.
From now on, mercenaries, thieves, spies and diplomats will give a new scale to your wonders.
7 Wonders Cities offers a new team-variant game mode for up to 8 players.
This is an expansion for the game 7 Wonders, the basic game is required to play.