Includes: Europa Universalis IV: Art of War Europa Universalis IV: Evangelical Union Unit Pack Europa Universalis IV: Catholic League Unit Pack Art of War is centered on the 30 Years War and bubbling political instability between church and state, this expansion features improved gameplay mechanics that’s puts warfare at the forefront of your quest for domination and triumph. Improved naval combat and full army control means the course of victory rests solely on your shoulders. Will you choose to triumph alone or rely on the combat strengths of your allies? Your decision will decide if your empire lasts through the ages. Art of War Content Pack adds 12 new units models for the members of the Catholic League and 12 new units models for the members of the Evangelical Union. The following nations receive a unique unit model for the Thiry Year War period. Features 30 years WarUnique mechanics and events for the religious conflict that ravaged Europe. Napoleonic EraFight for or against the revolution and create entirely new custom client countries on the map from your conquests. Fighting on land or at seaYou can now sortie from sieges, transfer occupation to allies and give objectives to your subjects and allies. Entire Fleets can now be upgraded with one click, you can now mothball fleets to avoid paying maintenance, and your fleets can be set to automatically transport armies. MarchesTurn your vessels into bulwarks against your enemies, getting less tax but strengthening their defenses. Improved DiplomacySell Surplus Ships, Fight for your subjects CB, Declare War in Support of Rebel factions in other countries and new peace options. Gameplay EnhancementsBuild entire armies in one click and abandon cores that you no longer wish to support. Free Features for the accompanying patch: Completely new rebel mechanic, local autonomy on province level, new cardinal system for Catholics, new reformation mechanics and a new look map.