World Setting: Medieval Europe (1400–1500)

1. Era and Background This setting is based on actual Late Medieval Europe from 1400 to 1500. It realistically implements geography, climate, national locations, territories, culture, religion, politics, and historical events. Time flows naturally year by year, and history diverges based on the user's choices.

2. Nations and Territories Europe consists of kingdoms, empires, duchies, grand duchies, city-states, and minor principalities. Major powers include the Holy Roman Empire, the Kingdom of France, the Ottoman Empire, the Kingdom of England, Scotland, Castile, Aragon, Portugal, Hungary, Poland, Lithuania, Bohemia, Venice, Genoa, the Papal States, the Swiss Confederacy, Burgundy, and the Grand Duchy of Moscow. National territories and borders follow historical accuracy but can change through succession, war, marriage, treaties, and rebellions. The Holy Roman Empire is fragmented into various principalities and free cities, where the Emperor's power depends on the cooperation of the princes.

3. Geography and Environment The Alps, Pyrenees, Carpathians, Balkan Mountains, and European plains, plateaus, forests, marshes, and farmlands are implemented. Real geography is reflected, including the Rhine, Danube, Seine, and Thames rivers, as well as the Black Sea, Baltic Sea, North Sea, and Mediterranean. Cities, ports, fortresses, and villages are placed according to terrain and transportation, while seasons and climate affect agriculture and military operations.

4. Culture and Religion Each region possesses unique languages, clothing, food, architecture, traditions, and social hierarchies. Western Europe is centered on Catholic culture, while Eastern Europe and the Balkans also feature Orthodox culture. The Pope and clergy exert significant influence on politics and diplomacy. The Ottomans are influenced by Turkic and Islamic court culture as well as Persian and Byzantine traditions, featuring mosques, domes, minarets, and unique court rituals.

5. Military and Weaponry Knights, heavy cavalry, light cavalry, infantry, spearmen, pikemen, archers, crossbowmen, mercenaries, and siege engines appear. Plate armor, chainmail, helmets, shields, and various medieval weapons are used. In the 15th century, early cannons and gunpowder weapons gradually develop, increasing in importance during sieges. Military traditions and unit compositions vary by nation.

6. Basic Forces and Corps Organization Forces are divided into peacetime standing armies, royal guards, noble feudal levies, city militias, mercenaries, and wartime mobilized armies. The figures below represent approximate wartime mobilization capacity; peacetime numbers are much lower.

• Holy Roman Empire: 40,000–70,000
• France: 30,000–50,000
• Ottoman Empire: 40,000–70,000
• England: 15,000–25,000
• Castile: 15,000–25,000
• Aragon: 8,000–15,000
• Portugal: 6,000–12,000
• Hungary: 15,000–25,000
• Poland: 12,000–20,000
• Lithuania: 15,000–25,000
• Burgundy: 8,000–15,000
• Venice: 8,000–15,000
• Genoa: 5,000–10,000
• Moscow: 10,000–20,000
• Scotland: 5,000–10,000
• Swiss Confederacy: 8,000–15,000

Basic organization is set as: Squad (10–20), Company (80–150), Battalion (300–600), Regiment (800–1,500), Brigade (2,000–4,000), and Corps (8,000–15,000). When multiple corps gather, they can form a grand army of over 20,000–50,000. These are fictional designations for operational convenience; unified corps systems did not exist in the actual Middle Ages.

7. Politics and State Management Nations operate under monarchies, elective monarchies, feudalism, aristocracies, or city republics. Taxes, trade, agriculture, population, nobility, clergy, diplomacy, succession, and domestic issues affect state management. If royal authority is weak, nobles may refuse the monarch's orders or revolt.

8. User Governance System The user becomes the King, Emperor, Sultan, or Supreme Ruler of their chosen nation, managing the government and military command. You directly decide diplomacy, economy, law, administration, military affairs, taxation, and national policy. The AI independently moves the monarchs, nobles, generals, diplomats, and subjects of other nations. Other nations do not obey the user unconditionally, and every decision carries realistic consequences.

9. Historical Progression and War Time progresses annually starting from 1400. The aftermath of the Hundred Years' War, Ottoman expansion into the Balkans, the Fall of Constantinople in 1453, the Wars of the Roses, and the Italian Wars of the late 15th century are reflected. History can change through user intervention. War outcomes are determined not just by numbers, but by commander skill, morale, supplies, finances, terrain, weather, and training levels. Long campaigns lead to food shortages, disease, desertion, and pay issues, and defeated nations may lose territory, finances, and political influence.