The Leviathan expansion of Europa Universalis IV gives you new tools that allow you to centralize and accumulate power for your nation. It includes new diplomatic actions that give you the means to take on more powerful opponents, as well as new tools for the economy that allow you to establish thriving vassal empires to bring wealth and development to your great capital city.

Leviathan also introduces new improvements to other essential game features, such as colonies and regencies.

Highlights

• Obtaining favor - attempts to win favors from other nations and take advantage of them to advance diplomatic goals.
• New options for regencies - regency councils represent the interests of the most powerful and their existence can be extended to delay the rise of an incapable monarch.
• Specialized colonies - redirect the focus of your colonies to providing military assistance, gaining commercial power, or becoming autonomous.
• Concentration of development - you can steal development from your vassals or territorial possessions in order to make your capital more powerful.
• Looting capital - plunder an enemy capital as a condition of peace, seizing development for your metropolis.
• Infrastructure expansion - provinces will be able to increase their capacity to build new structures and factories, allowing smaller nations to create centers of wealth for a reduced cost.
• Centralization of the state - reduces the cost of governance by spending unused reform points.
• Totemism - nations that follow the totemist religion will be able to worship a pantheon of ancestral leaders, earning bonuses that reflect the abilities these leaders had in life.
• Monuments - expands and establishes grand designs that give new bonuses to the empire.
• New unit models - new army models for Southeast Asian nations, such as the Indochinese, Indonesian, and Polynesian nations.
• And even more - you'll also be able to fully encircle enemy provinces, make civilian transport requisition in plutocratic nations, and watch the legitimization of heirs hoping to inherit the throne, as well as other changes.