The gameplay elements in Cossacks 3: Days of Brilliancefor PC are little altered. Instead, it focuses on adding more material to the Game. 

The new single-player storyline, based on Polish history and set in the 17th century, is the DLC's most notable feature. It enables us to take part in, among other things, the Battle of Klushino and the Battle of Vienna (also known as The Relief of Vienna) (also known as The Relief of Vienna). In these confrontations, we employ the typical Polish forces of the time, such as the illustrious hussars. 

Additionally, we can engage in a series of five separate missions that reenact the significant conflicts in 17th- and 18th-century Europe. Further, Cossacks 3: Days of Brilliance adds two new playable factions to the list, allowing us to command the Danish and Dutch armies. Each of these got its unique structures, units, and musical themes. The DLC also provides many new units to the remaining nations. It's also important to note that Cossacks 3 users who own the vanilla version of the Game were given access to the additional factions as part of a free update. Because of this, the multiplayer community was not divided by the developers.

Players can check out the new sequel of Cossacks 3: Days of Brilliance 

• Cossacks: European wars
• Cossacks 2: Napoleonic wars

Key Features 

• Experience the most exciting moments in 17th-century Polish history during the campaign. 
• Lead the mighty winged hussars through the plains of Europe in the era of their greatest triumphs and victories, from the brilliant Battle of Klushino to the epic Saving of Vienna. 
• Complete new missions: Five brand-new, action-packed missions will transport you across Europe and give you the chance to play general in some of the most significant military battles of the 17th and 18th centuries in the Old World.
• Play as powerful Denmark or the quick Netherlands to experience new, distinctive buildings, units, and musical themes.
• Players will get Five new troops, including unique new units, exclusive to the Cossacks 3, for new nations, and Poland will enter combat in the 17th century.
• The original 12 nations are still present, along with more than 140 historical structures, 100 technology, and 70 various unit kinds. 
• Up to eight players can now play the Game, an improvement over the original with thousands of soldiers. 
• With new Game mechanics, a wide variety of unit types, ranged and close-quarters combat, Terrain bonuses, and a realistic ballistics engine, the player has infinite tactical possibilities against both human and AI opponents. 
• The Game also reinstates the capability to customize random maps quickly.