Third Rome, released August 2017, is a smaller 'content pack' for the Russian states, adding several unique Russian government forms, an improved system for Siberian colonization, and new features for Eastern Orthodoxy.Mandate of Heaven, released in April 2017, focuses on Asia, with a Mandate of Heaven mechanic for China, an improved shogunate for Japan, a Banner system for the Manchu, new features for Confucianism and Shintoism, as well as state-wide edicts and an 'Age' system giving bonuses to countries that fulfill particular requirements in each game era, among other features.The add-on content adds German and West African units. Rights of Man, released in October 2016, adds special diplomatic abilities, personalities and traits for monarchs, queens generated by royal marriages (and are regents if an underage heir ascends the throne), a faction system for revolutionary republics, the ability to abdicate and much more.It also substantially expands the cultural diversity and number of provinces in Ireland and Africa, adds the ' corruption' mechanic for inefficiently-run nations, and introduces the State/Territory divide as another wrinkle when it comes to expanding.

Mare Nostrum, released in April 2016, primarily reworks naval combat and espionage.The Cossacks, released in December 2015, with a focus on Eastern Europe, new diplomacy features, and improved internal politics centered on managing the Estates of the Realm, as well as several multiplayer-oriented features.Common Sense, a development-focused expansion coming with a major overhaul of the base tax system as well as new features for Protestants and Buddhists, released in June 2015.El Dorado, a Mesoamerica and colonization-focused expansion, including a new Nation Designer, released in February 2015.The Art of War, a military-focused expansion released in October 2014, also coming with a free patch that brings a far more detailed map for the non-European parts of the world.

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