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It adds several new factions to play as in a mini-campaign, including the Roman Expedition that features a unique Roman horde play-style, extensive narrative-based missions, and an entirely new campaign.
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The first expansion pack, The Last Roman was released on 25 June 2015, and follows the exploits of the legendary Eastern Roman Empire general, Flavius Belisarius, in reconquering the ruined remains of the Western Roman Empire. On top of all these, climate change will progressively reduce the fertility of many lands across the map. and adds other features that focus on destruction and the apocalyptic nature of the time period, such as setting fire to entire cities and settlements on the battle map, ordinary people fighting side by side with your army against the invaders, diseases that will spawn more frequently and will kill both citizens and armies, and the ability to raze entire provinces, utterly destroying the city that was there. The game reintroduces the family tree note Eventually, the mechanic was also added to Rome II.
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