: Austria is essential for understanding Personal Unions (PUs), the Holy Roman Empire (HRE) mechanics, and the Imperial Diet.
: Castile or Portugal offer the best introduction to the New World, trade routes, and global empire management. europa universalis 4
: Break down army compositions (infantry/cavalry ratios) and the impact of Military Tech levels, especially crucial "mil tech" jumps like Tech 7 (Artillery) and Tech 15 (Morale). Recommended Nations for Different Playstyles : Austria is essential for understanding Personal Unions
: Focus on "Big Blue Blob" (France), "The Rising Sun" (Japan), or "Great Khan" (Mongolia/Hordes) strategies. Explain exactly which estates to privilege, which alliances to seek in the first month, and which mission tree branches to prioritize. the Holy Roman Empire (HRE) mechanics