Downloadable content (DLC) is content built by Paradox Development Studio (PDS) as an extension or add-on to Europa Universalis IV. They are modular in nature,[1] which means that a player can choose to play with or without a given DLC by checking them out at the launch menu. An expansion DLC is normally accompanied by a free patch that gives players most of the new content as not to hinder the playability of the game. As such, most DLCs are seen as optional content for players who wish to have a better gaming experience in exchange for some monetary support.
Multiplayer games also benefit from this compatibility, that is to say, if the host has a gameplay DLC (expansions and flavor packs) the player does not, the game acts as if the player has it.
Note: Further details on a specific title may be available by clicking on its banner or icon.
The base game is required for any and all DLC relating to the game. While cosmetic/music DLCs can be used with any game version, content DLCs can't be used prior to the version they were released with.
Make your own decisions: Nation building is completely flexible and the possibilities are endless.
Use your Monarch Power: Experience the new system of monarch power where your choices are influenced by the caliber of the man or woman you have at the top and will direct the ebb and flow of gameplay.
Experience history coming to life: The great personalities of the past ready to support you as you make your mark on thousands of historical events.
Turn the world into your playground: Enjoy hundreds of years of gameplay in a lush topographical map complete with dynamic seasonal effects.
Experience the all new trade system: Become a trade empire and gain control of vital trade routes to make the wealth of the world flow to your coffers.
A deeper diplomatic system: Bring out your negotiating skills, use coalitions, royal marriages and support for rebels and explore the possibilities of the new unilateral opinion system.
Create your own history & customize your game: Customize and mod practically anything your heart may desire or use the Steam Workshop.
Cross-platform Multiplayer: Battle against others or try the co-operative mode that allows several players to control a single nation (up to 32 players).
Expansions change the game considerably; introducing new and improved gameplay mechanics as well as many kinds of flavor and various balance tweaks (included in the accompanying free patch).
New Estates: 3 New estates to deal and manage in the realm -- the Cossacks, the Dhimmi, and the Tribes.
New Cossack Government: The Cossacks receive a new government form with unique interactions.
Diplomatic Feedback: Manually set the attitude towards AI nations, designate provinces you want, entice allies with the promise of land for their support.
Tengri: New religion mechanics focusing on Syncretism, allowing Tengri nations to choose and tolerate a secondary religion as if it were a national faith and treated by others as if holding that religion.
Horde Unity and Razing: Hordes can raze territories they conquer to get monarch points and raise horde unity or risk a tribal uprising.
Advanced Culture Change: Adds the ability to choose what culture you want to convert a province to from any neighboring culture, or restore the original culture of the province.
Native Policies: Adds the ability to set your policy towards the natives in your colonies, allowing you to focus on trade, assimilation, or subjugation.
Improved Espionage: Two new spy actions allowing you to study the technology of more advanced countries and agitate for liberty in your enemies subjects.
Historical Ages and Golden Eras: Meet objectives in four historical ages from the Age of Discovery to the Age of Revolutions, earning new bonuses and powers for your country. Declare a Golden Era to further increase your chance of success.
Chinese Empire: New mechanics for Ming China, including Imperial Decrees and Imperial Reforms to bolster the Dragon Throne.
Tributaries: Force your neighbors to pay tribute to your Chinese Empire, paying you in gold, manpower or monarch points.
New Japanese Rules: Daimyos now owe loyalty to the Shogun – and the Shogun is whomever controls the imperial capital of Kyoto. Compel the loyalty of your daimyos with new interactions that require them to submit to your authority, contribute to your power or even commit seppuku.
Manchu Banners: Rally the Manchu warlords around your throne and call up the traditional banners to reinforce your army.
Diplomatic Macro-builder: Common diplomatic actions are now easily available from the macro-builder interface.
New Governments: Powerful decisions related to each of the special government types of the Middle East, including unique mechanics for the Egyptian Mamluk Government, Persian Theocracy, Tribal Federations, and the heirs to Timur.
Trade Policies: Activate your merchants in trade nodes for special missions – promote profiteering, espionage, military, diplomacy, and religion propagation.
Islamic Schools: The wide range of Muslim disciplines offer unique perks to their disciples and transforms international relations across the Middle East.
Army Professionalism: Drill and discipline your armies as you move from the age of mercenary captains to the mass levies of standing armies.
Exploit Development: Reduce the strength of your provinces for a quick influx of cash or manpower, stripping your nation's future for immediate gain.
Iqta Taxes: Muslim governments can impose new taxes every 20 years for special bonuses.
Ability to directly convert subject's provinces to their state religion
And more: Changes to national ideas, missionary actions, Turkish Janissaries and many other game mechanics.
Design Your Government: Unlock unique reforms that will define how you govern your kingdom or republic, earning free policies and boosting the power of some estates.
Enhanced Policy System: Special bonuses that make the policy system even more attractive.
Trade Company Investments: Upgrade and improve the provinces tied to your trade companies, conferring bonuses both to the European master and neighboring Indian nations.
New Indian Mission Trees: Unique mission paths for the most important Indian sultanates and kingdoms.
New Indian Estates: India gets five new castes, raise the Brahmins to reduce unrest in a province or install Jain governors for a boost to income while reducing manpower.
New Mughal Culture Bonus: The Mughal Empire can assimilate and accommodate newly conquered cultures with ease.
Charter Companies: Europeans can buy a foothold into trade charter zones in Africa and Asia, if they can find a prince that trusts them.
Upgraded Trade Centers: Invest in the development of your Centers of Trade.
And more, including: new ways to suppress rebellion, the monsoon season, new uses for colonists in non-colonial development, scornful insults, multiplayer teams, new art, and more.
A Powerful Pope: Appoint cardinals, publish Papal Bulls and gather tithes. The Vatican and Papal Controller now have new abilities to sway the souls of Christendom.
New Holy Roman Empire System: Imperial Incidents provide new challenges to the Emperor's power and authority. Will your empire follow a course to a centralized monarchy or decentralized federation?.
Revolutions Revamped: The spirit of Revolution is a contagion that must be either embraced or vigorously opposed. Use the guillotine and revolutionary guard to enforce the new way of thinking.
The Hussite Faith: Bohemia has an early game chance to embrace heresy and stand alone against the Pope until The Reformation.
Hegemonies: If you accomplish great feats, you should expect great rewards. Seize the mantle of honor for accumulating great wealth and armies.
New Missions: Over 20 new unique mission trees for a variety of European nations
Defender of Faith: With great responsibility comes great power. Earn more bonuses for defending a major religion than for defending a small one.
The Council of Trent and Counter-Reformation: Join other Catholic rulers to slow down the spread of the Reformation by making concessions to the unruly mob or harshly imposing the will of God.
Provoke Rebellions: Risk a larger rebellion now while you think you can manage it instead of waiting for discontent to take its course.
Picture a capital city that shines like a gemstone, improved by the wealth drawn from the hinterland - decorated by riches demanded from vassals. A capital not of a mighty territorial empire, but of a compact and concentrated state that can still use gold and favors to influence neighbors and rivals. Picture it and then make it so in Europa Universalis IV: Leviathan.
Immersion packs are expansions of a smaller scale. Unlike regular expansions which are broader in focus, immersion packs focus on on specific regions to bring them better to life by granting more flavor (in addition to the accompanying free patch).
Tsardoms and Principalities: New ranks of Russian government with new abilities and, for Tsars, strong bonuses including the right to claim entire states.
Iconography: Commission great religious icons for the Orthodox church, boosting your empire’s power depending on the saint you choose to revere.
Metropolitans: Consecrate highly developed provinces with Metropolitans, adding to the authority of the Orthodox church, but for a cost.
Streltsy: Special Russian soldiers that excel in combat, but raise the cost of stabilizing your empire.
Siberian Frontier: Russian nations can slowly colonize uninhabited border regions, with no fear of native uprisings.
New Russian Missions: Exclusive mission trees for Russia/Muscovy, Novgorod, and Russian Principalities.
Third Rome Content Pack: Adds 48 new unit models to nations in and around the Russian borders.
New British Missions: New exclusive mission trees for England, Scotland and Ireland.
Industrial Revolution: Highly developed provinces may produce coal in the late game, fueling higher productivity and greater wealth.
Innovativeness: Earn rewards for being the first nation to unlock new knowledge, including lower power costs.
Naval Doctrine: Adopt a general strategy for your fleets, giving you bonuses to ship maintenance, trade power or battle performance.
Anglicanism: A new Protestant faith can appear in England with new bonuses and religious choices.
Knowledge Sharing: Help your lagging allies or subjects by promoting the spread of institutions in their realms.
Rule Britannia Content Pack: New unit models for British nations, including regional Irish units and revolting nations like Northumberland or Cornwall.
Rule Britannia Music Pack: Our composers have been hard at work writing new songs to quiet the stormy seas of commerce.
Minority Expulsion: Settle your distant colonies with homeland minorities, promoting greater cohesion at home, while adding more diversity to your subject nations.
Establish Orders: Iberian nations can appoint Jesuit, Franciscan or Dominican clerics to govern their states to reduce unrest or ease conversion.
New Mission Trees: New missions and objectives for the nations of Iberia and Northwest Africa, including Spain and Andalusia.
Pirate Republics: Play as or combat against pirate nations in dangerous sea zones, with their own flavor and game style.
Flagships: Appoint a Flagship to lead your navy, adding combat and trade power to your fleets.
Naval Barrage: Use your ships to help besiege coastal forts by bombarding the walls.
Golden Century Content Pack: New unit and ship models for nations in the Iberian peninsula, Berber and pirate nations.
American Dream Pack: A flavor pack for the United States of America adding over 50 new, unique events, 10 themed event pictures, as well as several new unit models.
Purple Phoenix Pack: A flavor pack for the Byzantine Empire adding new, unique events, new missions, themed event pictures as well as several new unit models.
Star and Crescent Pack: A flavor pack enhancing the gameplay of Muslim nations. Adding a total of 70 new event pictures, several new events and event chains for Muslim rulers, and some new decisions.
For music, cosmetic packs or e-books see Downloadable content 2.
Europa Universalis IV game and the following expansions: 
