This expension is a campaign allowing players to live an adventure scripted in 5 scenarios which brings, collectively during the game, players to make choices that will tip the story towards Peace or World War.

At the start of a game, players open an envelope containing the story, the special rules of the scenario and the extra cards for this scenario. Then, at the end of the game, each player receives different rewards depending on whether he won or lost and according to his own choices during the game (depending on the scenario).

Thus, each one builds his Heritage over the 5 scenarios. The winner of the campaign is the one who wins the last scenario.

The campaign offers 6 scenarios in all because there is a branch, depending on the choice of players in scenario 4.

During the campaign and after the campaign, the players will unlock cards which can come to enrich the basic game definitively. The Heritage campaigns therefore offer players to live a story and gradually unlock a mini-extension to the base game offering a new mechanic, a bit like a Legacy, but totally replayable because there is no alteration of equipment.

The campaign is also playable solo.

Included in the Kickstarter Heritage edition of the game.

戰爭或和平擴充則加入了最近流行的傳承要素，
在進行戰役模式時共需進行五場遊戲，每場遊戲開始時會打開信封，加入額外卡片以及本場獨有的特殊規則，
在遊戲結束時，玩家則因勝敗結果和遊戲過程中作出的抉擇而獲得不同的獎賞。
另外擴充也提供了6個單人遊玩使用的劇本，讓玩家發現不同的策略，也提供更多的挑戰