The Europa Universalis IV: Emperor expansion (1.30) significantly overhauled European gameplay by introducing a new Holy Roman Empire "Incidents" system, extensive mission trees for major nations, and a revamped mercenary system based on unique, recruitable companies. Key updates also included a new "Governing Capacity" mechanic to replace state limits and a more dynamic, tiered Revolutionary system. For a detailed breakdown of these mechanics, visit the Official EU4 Wiki - Emperor DLC . Emperor (DLC) - Europa Universalis 4 Wiki
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