The world at a hinge point / 1 January 1598

De Re Militari

A researched grand campaign of crowns, confessions, gunpowder armies, oceanic trade, and political choices that do not have to follow history.

The old order is armed, indebted, divided, and global.

The campaign begins at a moment when dynastic politics, confessional struggle, expanding fiscal states, and connected seas place distant decisions in the same strategic system.

01 / Atlantic

A war system spanning Flanders, France, Ireland, Iberia, and two oceans

Spain enters under pressure, the Dutch revolt continues, Elizabethan England is at war, and France approaches a fragile settlement. Money, shipping, and negotiated credit matter as much as battlefield strength.

02 / Central Europe

The Long Turkish War

Habsburg, Ottoman, Transylvanian, and imperial interests collide across a fortified frontier where composite authority limits every ruler.

03 / East Asia

The Imjin War endgame

Joseon, Ming, and Toyotomi forces remain tied to an exhausted conflict. Withdrawal, succession, naval control, and negotiated peace are still live questions.

04 / Indian Ocean

Ports become strategy

Portuguese routes, Acehnese ambition, Mughal scale, Safavid recovery, and Southeast Asian reconstruction create opportunities that no single power controls.

05 / Succession

Old rulers, open futures

Several central figures are near historical death or political transition. Those outcomes are pressures for roleplay, not automatic commands from a timeline.

Research sets the floor. Roleplay builds everything above it.

A credible action explains its cause, the means used to carry it out, the resistance it creates, and the consequences that follow. Staff resolve collisions and uncertainty.

01

Claim

Choose a state and begin from its actual opening institutions, ruler, wars, obligations, and limits.

02

Develop

Write reforms, diplomacy, intrigue, succession, trade, and military preparation with resources and opposition.

03

Contest

When stories collide, approved bonuses, campaign rules, and fate rolls turn competing plans into outcomes.

04

Continue

Consequences persist. Victories create commitments; failures create new politics instead of ending the story.

Twenty-five powers. No predetermined winner.

Every dossier states the opening position, immediate pressure, usable leverage, hard constraints, open decisions, and a source trail.

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Open a card for the complete researched starting position.25 powers shown
Atlantic Europe

Spanish Monarchy

Philip II still rules on opening day. His composite monarchy links Castile, Aragon, the Italian possessions, the Army of Flanders, the American viceroyalties, and the Philippines while fighting France, England, and the Dutch Republic.

PressureThe French war and Dutch Revolt consume money and experienced troops.
LeverageThe Army of Flanders is an experienced pike-and-shot force.
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Immediate pressures

  • The French war and Dutch Revolt consume money and experienced troops.
  • The crown has recently suspended payments and depends on negotiated credit.
  • Philip II is old and dies in September if history is not changed.

Usable strengths

  • The Army of Flanders is an experienced pike-and-shot force.
  • American silver and Italian possessions support a global strategy.
  • A mature diplomatic, naval, and administrative network connects several theaters.

Hard constraints

  • The monarchy is composite; one order does not erase local laws or institutions.
  • Silver shipments are irregular and do not make credit or logistics unlimited.
  • Oceanic distance and simultaneous fronts make concentration expensive.

Open decisions

  • Conclude, alter, or reject the Peace of Vervins with France.
  • Choose how Philip III's accession changes ministers and priorities.
  • Balance Flanders, Ireland, the Atlantic, and Mediterranean defense.
Atlantic Europe

Portuguese Empire

Portugal is joined to the Spanish crown under the Iberian Union but retains its own laws, councils, officials, and imperial networks. Its ports stretch from Brazil and West Africa to Goa, Malacca, Macau, and Japan.

PressureDutch and English expeditions increasingly attack Portuguese trade routes.
LeverageExperienced pilots, fortified ports, and long-established commercial communities.
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Immediate pressures

  • Dutch and English expeditions increasingly attack Portuguese trade routes.
  • The Estado da India must defend scattered forts with limited local manpower.
  • Union with Spain exposes Portuguese commerce to Spain's enemies.

Usable strengths

  • Experienced pilots, fortified ports, and long-established commercial communities.
  • Control of key links around Africa and across the Indian Ocean.
  • Brazilian sugar and Asian carrying trades provide valuable revenue.

Hard constraints

  • Portugal is not an interchangeable part of Castile and cannot use every Spanish asset.
  • Forts often depend on local alliances, merchants, and imported food.
  • A chain of ports is not territorial control over the surrounding regions.

Open decisions

  • Defend or reform the carreira da India convoy system.
  • Decide whether Portuguese interests resist or exploit the Iberian Union.
  • Contest Dutch entry into West Africa, Brazil, and maritime Asia.
Atlantic Europe

Kingdom of France

Henry IV has largely defeated the Catholic League but is still at war with Spain. The crown is rebuilding authority after decades of civil war while preparing a confessional settlement with the Huguenots.

PressureWar damage, debt, and local armed interests limit rapid recovery.
LeverageHenry IV has battlefield credibility and a growing royal coalition.
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Immediate pressures

  • War damage, debt, and local armed interests limit rapid recovery.
  • Catholic acceptance of Henry and Huguenot security both remain politically fragile.
  • The Bourbon succession is narrow until a durable marriage produces heirs.

Usable strengths

  • Henry IV has battlefield credibility and a growing royal coalition.
  • France has deep manpower, agricultural, and fiscal potential.
  • Peace can release resources for reconstruction and foreign diplomacy.

Hard constraints

  • The Edict of Nantes must be enforced through courts, governors, and fortified guarantees.
  • Royal orders still pass through provincial, noble, municipal, and confessional interests.
  • Recovery takes years; it cannot instantly create a centralized standing army.

Open decisions

  • Negotiate the Edict of Nantes and the Peace of Vervins differently.
  • Resolve Henry's marriage and succession without assuming later heirs.
  • Choose between recovery, anti-Habsburg diplomacy, and renewed war.
Atlantic Europe

Dutch Republic

The United Provinces remain at war with Spain. Maurice of Nassau's campaigns, provincial finance, and Oldenbarnevelt's political management have strengthened the Republic, while merchants push into global trade.

PressureThe provinces disagree over war aims, taxes, religion, and command.
LeverageA disciplined army and strong siege practice have seized the initiative.
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Immediate pressures

  • The provinces disagree over war aims, taxes, religion, and command.
  • Major fortified towns and Spanish field forces still block complete independence.
  • Overseas expansion risks conflict with Portuguese, Spanish, and Asian powers.

Usable strengths

  • A disciplined army and strong siege practice have seized the initiative.
  • A large merchant marine supplies sailors, shipping, credit, and intelligence.
  • Federal institutions can mobilize several wealthy provinces around concrete bargains.

Hard constraints

  • The Republic is a federation, not a unitary state under Maurice.
  • Commercial shipping is useful but not automatically a purpose-built battle fleet.
  • Army reform improves coordination but does not nullify numbers, terrain, or supply.

Open decisions

  • Continue the offensive or pursue the path toward a truce.
  • Create the VOC differently or leave overseas ventures divided.
  • Manage rivalry between military leadership and provincial statesmen.
Atlantic Europe

Kingdom of England and Ireland

Elizabeth I rules England and claims Ireland while fighting Spain. The Nine Years' War is escalating, no heir has been named publicly, and maritime war mixes royal fleets, private enterprise, and commerce raiding.

PressureThe Irish war strains money, manpower, command, and political credibility.
LeverageA capable royal navy, experienced privateers, and defensible home waters.
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Immediate pressures

  • The Irish war strains money, manpower, command, and political credibility.
  • The succession after Elizabeth remains unsettled.
  • War with Spain disrupts trade even while merchants seek new routes.

Usable strengths

  • A capable royal navy, experienced privateers, and defensible home waters.
  • Parliamentary taxation and local administration can support focused campaigns.
  • English and London merchants are ready to fund chartered ventures.

Hard constraints

  • Ireland is not securely controlled outside the areas actually held and supplied.
  • The crown cannot fund unlimited continental, Irish, and oceanic war at once.
  • A charter grants legal privileges, not instant ships, markets, or overseas sovereignty.

Open decisions

  • Resolve the Irish war with force, negotiation, Spanish intervention, or reform.
  • Shape Elizabeth's succession before 1603.
  • Charter the East India Company, redirect it, or block it.
Continental Europe

Austrian Habsburg Monarchy

Rudolf II governs his hereditary lands from Prague while the Habsburg frontier fights the Ottoman Empire in the Long Turkish War. Hungary, Bohemia, Austria, and the crown's other lands retain distinct estates and finances.

PressureThe Long Turkish War is exceptionally expensive and operationally indecisive.
LeverageA fortified Hungarian-Croatian border system backed by several Habsburg lands.
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Immediate pressures

  • The Long Turkish War is exceptionally expensive and operationally indecisive.
  • Rudolf's brothers increasingly contest influence and succession.
  • Confessional bargaining inside Bohemia and the Austrian lands is becoming sharper.

Usable strengths

  • A fortified Hungarian-Croatian border system backed by several Habsburg lands.
  • Access to imperial diplomacy, German troops, and international credit.
  • Prague is a prestigious court and administrative center.

Hard constraints

  • The hereditary lands are composite and cannot be taxed or mobilized uniformly.
  • Imperial title does not place every Imperial Estate under direct Habsburg command.
  • Mercenary armies depend on pay, magazines, commanders, and estate consent.

Open decisions

  • Seek peace or a different strategy in the Long Turkish War.
  • Manage the Rudolf-Matthias family struggle.
  • Negotiate confessional guarantees before they harden into armed blocs.
Continental Europe

Holy Roman Empire

The Empire is a constitutional order of electors, princes, bishops, cities, circles, courts, and other Estates under Emperor Rudolf II. It is not one centralized country and has no permanent national army.

PressureConfessional disputes increasingly overlap with constitutional disputes.
LeverageDense legal institutions and regional alliances can contain many disputes.
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Immediate pressures

  • Confessional disputes increasingly overlap with constitutional disputes.
  • The emperor's authority depends on law, negotiation, and cooperation from Estates.
  • The imperial response to the Ottoman war and western conflicts is uneven.

Usable strengths

  • Dense legal institutions and regional alliances can contain many disputes.
  • Imperial cities and territories possess substantial money, manpower, and expertise.
  • The Diet and courts provide recognized routes for bargaining and legitimacy.

Hard constraints

  • An imperial player cannot directly order sovereign Estates or use all German resources.
  • Religious affiliation does not guarantee automatic military unity.
  • Imperial action needs a legal basis, willing contingents, finance, and command.

Open decisions

  • Prevent or reshape the Protestant Union and Catholic League.
  • Resolve the Julich succession without importing the historical coalition.
  • Change the Bohemian crisis that reaches a breaking point in 1618.
Continental Europe

Polish-Lithuanian Commonwealth

The Commonwealth of the Two Nations is a federal, elective monarchy under Sigismund III Vasa. The king also claims Sweden, while the Sejm, senators, magnates, local diets, and Lithuanian institutions share power.

PressureSigismund's Swedish crown is contested by Duke Charles.
LeverageMobile cavalry, experienced commanders, and substantial territorial depth.
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Immediate pressures

  • Sigismund's Swedish crown is contested by Duke Charles.
  • Moldavian, Livonian, Muscovite, Ottoman, and Crimean frontiers pull policy in different directions.
  • Large plans require taxes and consent from a politically powerful nobility.

Usable strengths

  • Mobile cavalry, experienced commanders, and substantial territorial depth.
  • A large, multiethnic realm with flexible diplomatic reach.
  • The elective constitution can legitimize broad bargains when consent is won.

Hard constraints

  • The king cannot treat the Sejm or magnates as salaried royal officials.
  • A levy, registered Cossacks, private magnate troops, and paid crown units are not one standing army.
  • Religious diversity is real and cannot be reduced to one confessional bloc.

Open decisions

  • Preserve, divide, or abandon the Vasa union with Sweden.
  • Intervene in Muscovy's succession or stabilize the frontier.
  • Define the Cossack settlement before repeated conflict hardens positions.
Continental Europe

Kingdom of Sweden

Sigismund III Vasa is Sweden's crowned king but normally rules from the Polish-Lithuanian Commonwealth. Duke Charles leads a powerful Lutheran opposition, making crown, confession, and constitutional authority inseparable.

PressureThe royal union with the Commonwealth lacks a trusted political settlement.
LeverageA crown with Baltic ports, mines, local levies, and experienced officers.
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Immediate pressures

  • The royal union with the Commonwealth lacks a trusted political settlement.
  • Duke Charles and Sigismund prepare rival armed coalitions.
  • Finland and the Baltic provinces have interests that do not map neatly onto either camp.

Usable strengths

  • A crown with Baltic ports, mines, local levies, and experienced officers.
  • The Riksdag and council can mobilize legitimacy around an accepted settlement.
  • Control of Finland and Estonia offers strategic depth across the Baltic.

Hard constraints

  • Later Swedish military power and institutions do not exist automatically in 1598.
  • Neither Sigismund nor Charles begins with uncontested authority over the whole kingdom.
  • Baltic expansion needs ships, taxes, garrisons, and local cooperation.

Open decisions

  • Avoid, alter, or fight the confrontation that historically ends at Stangebro.
  • Negotiate a durable confessional settlement for the Vasa union.
  • Choose whether Baltic priorities target Denmark, Muscovy, Livonia, or internal consolidation.
Continental Europe

Denmark-Norway

Christian IV rules the composite monarchy of Denmark and Norway with the Danish Council of the Realm. Control of the Danish straits, a useful fleet, and the Sound dues give the crown unusual leverage in Baltic affairs.

PressureSwedish rivalry over the Baltic and northern frontiers remains unresolved.
LeverageRevenue from the Sound and strategic control of the Baltic entrances.
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Immediate pressures

  • Swedish rivalry over the Baltic and northern frontiers remains unresolved.
  • The nobility and council limit unilateral taxation and foreign adventures.
  • Norway, Iceland, duchies, and Danish territories have distinct needs and institutions.

Usable strengths

  • Revenue from the Sound and strategic control of the Baltic entrances.
  • A significant royal fleet and strong maritime position.
  • Christian IV is young, energetic, and able to pursue long-term state projects.

Hard constraints

  • Sound control does not equal command of every Baltic merchant or coastline.
  • The monarchy is composite and cannot mobilize every territory identically.
  • Large land wars depend heavily on hired troops, credit, and council support.

Open decisions

  • Settle or intensify rivalry with Sweden before the Kalmar War.
  • Build a commercial-company strategy without assuming later colonies succeed.
  • Balance royal centralization against the Council of the Realm.
Continental Europe

Tsardom of Russia

Tsar Feodor I is alive on opening day but dies on 17 January if history proceeds. Boris Godunov dominates government, while the end of the Riurikid line creates an immediate legitimacy problem.

PressureThe succession must be accepted by elites, church, towns, and military servitors.
LeverageA large realm with established chancelleries, service cavalry, fortresses, and church support.
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Immediate pressures

  • The succession must be accepted by elites, church, towns, and military servitors.
  • Pretenders and foreign intervention become possible if legitimacy collapses.
  • Frontier defense and service obligations remain expensive.

Usable strengths

  • A large realm with established chancelleries, service cavalry, fortresses, and church support.
  • Boris has extensive administrative experience and a strong court network.
  • A Land Assembly can provide a recognized path to an elected succession.

Hard constraints

  • The Time of Troubles is a risk, not an event players may assume has already happened.
  • Territorial size does not remove slow communications, local shortages, or factional politics.
  • A claimant needs recognition and institutions, not only a blood story.

Open decisions

  • Arrange Feodor's succession before or after his death.
  • Prevent, exploit, or redirect the pretender crisis.
  • Manage relations with the Commonwealth, Sweden, steppe powers, and Siberian expansion.
West & South Asia

Ottoman Empire

Mehmed III's empire is fighting the Habsburgs in Hungary while Anatolian disorder grows into the Celali rebellions. The imperial household, provincial forces, Janissaries, navy, and tax systems remain formidable.

PressureThe Long Turkish War drains money, troops, and provincial stability.
LeverageLarge fiscal, demographic, military, and logistical resources across three continents.
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Immediate pressures

  • The Long Turkish War drains money, troops, and provincial stability.
  • Celali armies, banditry, displacement, and climate stress spread through Anatolia.
  • Court, military, and provincial factions compete over appointments and resources.

Usable strengths

  • Large fiscal, demographic, military, and logistical resources across three continents.
  • Experienced fortress networks, artillery, household troops, and provincial cavalry.
  • A sophisticated bureaucracy and diplomatic position linking the Mediterranean and Indian Ocean.

Hard constraints

  • The sultan cannot concentrate every provincial and naval resource on one front.
  • Janissaries, timar forces, levies, and provincial households have different obligations.
  • Suppression of rebellion requires peace, money, commanders, and a political settlement.

Open decisions

  • End or transform the Long Turkish War.
  • Address the Celali crisis before it becomes a prolonged civil conflict.
  • Choose the timing and scale of renewed war with Safavid Iran.
Continental Europe

Principality of Transylvania

Sigismund Bathory rules a principality caught between Ottoman suzerainty, Habsburg alliance, the estates, and the politics of Wallachia and Moldavia. His repeated changes of policy make authority unusually unstable.

PressureThe Long Turkish War turns every alliance into a question of survival.
LeverageMountain defenses, mobile regional forces, and knowledge of the frontier.
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Immediate pressures

  • The Long Turkish War turns every alliance into a question of survival.
  • The prince depends on estates, nobles, Szekely military communities, and foreign support.
  • Succession and Sigismund's willingness to abdicate remain open dangers.

Usable strengths

  • Mountain defenses, mobile regional forces, and knowledge of the frontier.
  • Diplomatic leverage created by the rivalry of larger neighbors.
  • Connections to Wallachian, Moldavian, Habsburg, Polish, and Ottoman politics.

Hard constraints

  • Transylvania cannot fight both imperial systems indefinitely without outside support.
  • A foreign guarantee must be enforced with troops, money, and recognition.
  • Internal estates and communities require negotiated obligations.

Open decisions

  • Create a durable Ottoman, Habsburg, or neutral settlement.
  • Coordinate with Michael the Brave without assuming later union.
  • Resolve succession before serial abdications invite occupation.
Continental Europe

Republic of Venice

Venice is a wealthy oligarchic republic with a major commercial network, the Arsenal, mainland possessions, and a maritime empire centered on the Adriatic, Ionian islands, and Crete.

PressureTrade with the Ottoman world must be balanced against defense and Christian diplomacy.
LeverageThe Arsenal, merchant capital, skilled crews, and fortified maritime bases.
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Immediate pressures

  • Trade with the Ottoman world must be balanced against defense and Christian diplomacy.
  • Dutch and English competition is entering Mediterranean and Asian commerce.
  • The republic's papal relationship can become a constitutional and confessional crisis.

Usable strengths

  • The Arsenal, merchant capital, skilled crews, and fortified maritime bases.
  • Experienced councils and resident diplomacy across Europe and the Mediterranean.
  • A defensible lagoon capital and useful north-Italian mainland resources.

Hard constraints

  • Commercial wealth cannot be converted instantly into a large inland field army.
  • The loss of Cyprus is already historical and is not reversed without a campaign.
  • Neutrality and trade require concessions; they do not guarantee safety from great powers.

Open decisions

  • Choose neutrality or intervention in the Ottoman-Habsburg war.
  • Resolve the future papal Interdict crisis differently.
  • Respond to northern chartered companies entering established trade routes.
Continental Europe

Papal States

Pope Clement VIII combines spiritual authority, diplomacy, courts, patronage, and territorial rule in central Italy. The devolution of Ferrara and the French settlement make 1598 an unusually active papal year.

PressureFerrara must be integrated without assuming every Este interest accepts papal rule.
LeverageWide diplomatic and ecclesiastical networks with major influence over legitimacy.
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Immediate pressures

  • Ferrara must be integrated without assuming every Este interest accepts papal rule.
  • France's settlement tests the line between confessional policy and political necessity.
  • Italian security depends on relations with Spain, Venice, Tuscany, and other states.

Usable strengths

  • Wide diplomatic and ecclesiastical networks with major influence over legitimacy.
  • Central Italian revenue, fortresses, officials, and patronage.
  • The ability to mediate disputes and coordinate confessional coalitions.

Hard constraints

  • Spiritual authority is not direct military command over Catholic rulers.
  • Excommunication and interdict are political tools with uncertain compliance.
  • The Papal States need money, troops, and local administration like any temporal state.

Open decisions

  • Integrate Ferrara through force, law, bargaining, or a different settlement.
  • Shape acceptance of Henry IV and the Edict of Nantes.
  • Prevent or provoke the later confrontation with Venice.
West & South Asia

Safavid Iran

Shah Abbas I is centralizing power, reorganizing the army, and preparing to recover Khurasan from the Uzbeks. The move toward Isfahan as a new capital is part of a wider political, military, and commercial reorientation.

PressureUzbek pressure in the east and Ottoman control of western territories create a two-front danger.
LeverageA determined ruler building ghulam, musketeer, and artillery forces.
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Immediate pressures

  • Uzbek pressure in the east and Ottoman control of western territories create a two-front danger.
  • Centralization challenges powerful Qizilbash interests.
  • Army reform and court projects require stable revenue and loyal personnel.

Usable strengths

  • A determined ruler building ghulam, musketeer, and artillery forces.
  • Control of Iranian plateau routes and a valuable silk economy.
  • Diplomatic opportunities with European, Armenian, Georgian, Mughal, and Central Asian actors.

Hard constraints

  • The new army is developing and cannot be treated as complete on opening day.
  • Isfahan's monumental transformation takes years and large resource commitments.
  • Victory in one frontier does not remove the risk from the other.

Open decisions

  • Change the 1598 campaign for Herat and Mashhad.
  • Choose when and how to reopen war with the Ottoman Empire.
  • Redirect silk, Armenian networks, and Gulf diplomacy.
West & South Asia

Mughal Empire

Akbar rules a wealthy and expanding empire through a negotiated system of imperial service, mansabs, revenue administration, Rajput alliances, and regional elites. In 1598 he returns from Lahore toward Agra as attention shifts south.

PressurePrince Salim's growing independence threatens succession and court unity.
LeverageExceptional revenue, population, cavalry, artillery, fortresses, and administrative reach.
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Immediate pressures

  • Prince Salim's growing independence threatens succession and court unity.
  • The Deccan sultanates resist Mughal expansion and require long campaigns.
  • Imperial scale depends on the cooperation and rotation of many ranked servants.

Usable strengths

  • Exceptional revenue, population, cavalry, artillery, fortresses, and administrative reach.
  • A broad governing coalition that includes many religious and regional elites.
  • Control of Gujarat, Bengal, Kabul, and northern India connects major trade zones.

Hard constraints

  • The mansabdari system is not an unlimited standing army ready in one place.
  • Local zamindars, allied rulers, and imperial officers retain interests and bargaining power.
  • Later conquests and Jahangir's reign are not guaranteed outcomes.

Open decisions

  • Settle the Akbar-Salim conflict before rebellion.
  • Conquer, contain, or ally with Ahmadnagar and other Deccan states.
  • Decide how imperial religious policy develops after Akbar.
Africa

Saadian Morocco

Ahmad al-Mansur rules Morocco after victory over Portugal and the 1591 conquest of Songhay. His court claims caliphal prestige and benefits from trans-Saharan gold, diplomacy, trade, and a gunpowder army.

PressureControl beyond the Sahara is expensive, distant, and dependent on garrisons and intermediaries.
LeverageA prestigious monarchy with firearms, artillery, and Atlantic-Mediterranean access.
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Immediate pressures

  • Control beyond the Sahara is expensive, distant, and dependent on garrisons and intermediaries.
  • Plague and the sultan's eventual death threaten a contested succession.
  • Ottoman, Iberian, English, and West African diplomacy pull in different directions.

Usable strengths

  • A prestigious monarchy with firearms, artillery, and Atlantic-Mediterranean access.
  • Gold and sugar revenues support diplomacy and court projects.
  • The Songhay victory provides leverage across the western Sahara.

Hard constraints

  • The conquest of Songhay does not create direct, cheap control over all western Sudan.
  • Gold revenue depends on routes, local actors, security, and collection.
  • A caliphal claim does not force recognition from other Muslim rulers.

Open decisions

  • Consolidate, decentralize, or withdraw from the Niger bend.
  • Build an English, Iberian, Ottoman, or balanced foreign policy.
  • Create a succession settlement before the 1603 crisis.
Africa

Ethiopian Empire

The death of Sarsa Dengel in 1597 leaves the young Emperor Yaqob on the throne amid a contested Solomonic succession. Susenyos and Za Dengel are potential rivals, while regional lords, the church, and Oromo expansion shape power.

PressureA child ruler depends on regents and great lords whose interests can diverge.
LeverageA durable highland monarchy with established military, court, and ecclesiastical traditions.
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Immediate pressures

  • A child ruler depends on regents and great lords whose interests can diverge.
  • Succession conflict can combine with regional warfare and shifting alliances.
  • Contacts with Catholic missions create opportunity and confessional danger.

Usable strengths

  • A durable highland monarchy with established military, court, and ecclesiastical traditions.
  • Terrain and mobile royal camps complicate invasion and support regional mobilization.
  • Red Sea and Portuguese connections offer limited diplomatic and technical options.

Hard constraints

  • The emperor's title does not provide uncontested control over every province or lord.
  • European support is distant, small, and politically costly.
  • Later conversion under Susenyos is not predetermined in 1598.

Open decisions

  • Secure Yaqob's regency or support a rival claimant.
  • Set terms for Oromo alliances, conflict, and incorporation.
  • Define relations with Jesuits, Portugal, and Red Sea powers.
East & Southeast Asia

Ming Empire

The Wanli Emperor's state is sustaining a massive intervention in Korea while managing northern defenses, maritime trade, silver-dependent finance, and difficult court politics. The war has not yet ended on opening day.

PressureThe Korean war has imposed severe fiscal and logistical costs.
LeverageEnormous population, tax base, arsenals, fortresses, and bureaucratic experience.
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Immediate pressures

  • The Korean war has imposed severe fiscal and logistical costs.
  • Court disputes and the imperial succession controversy obstruct appointments.
  • Nurhaci is consolidating Jurchen power on the northeastern frontier.

Usable strengths

  • Enormous population, tax base, arsenals, fortresses, and bureaucratic experience.
  • The ability to mobilize armies across several military regions.
  • A central position in silver, silk, porcelain, and regional diplomatic networks.

Hard constraints

  • Nominal registers do not equal troops who are trained, paid, and present.
  • Silver revenue is vulnerable to trade flows, transport, corruption, and local collection.
  • Victory in Korea does not erase war exhaustion or northern frontier problems.

Open decisions

  • Finish, prolong, or redirect the Korean intervention.
  • Recognize, contain, divide, or confront Nurhaci before 1618.
  • Resolve court and succession disputes before fiscal crises compound.
East & Southeast Asia

Joseon Korea

King Seonjo's kingdom remains a battlefield in the final phase of the Imjin War. Korean armies, local forces, the navy, and Ming allies have contained Japan, but the peninsula is devastated and Japanese garrisons still hold southern positions.

PressureMilitary command and court factionalism have repeatedly undermined coordination.
LeverageExperienced naval forces, local resistance, fortified terrain, and Ming support.
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Immediate pressures

  • Military command and court factionalism have repeatedly undermined coordination.
  • Civilian displacement, destroyed agriculture, disease, and supply failure require years of recovery.
  • The Japanese withdrawal and the final naval battles are not complete on opening day.

Usable strengths

  • Experienced naval forces, local resistance, fortified terrain, and Ming support.
  • A literate bureaucracy capable of recording losses and organizing reconstruction.
  • Commanders and communities have adapted after the disasters of 1592.

Hard constraints

  • Ming alliance does not place Ming forces under Korean control.
  • Yi Sun-sin's presence is historically contingent and cannot be assumed after his death date.
  • War recovery cannot be skipped through one decree or successful battle.

Open decisions

  • Shape the withdrawal negotiations and final operations.
  • Keep Yi Sun-sin alive or prepare a credible command succession.
  • Choose military, land, tax, and relief reforms during reconstruction.
East & Southeast Asia

Toyotomi Japan

Toyotomi Hideyoshi still rules on opening day, his armies remain in Korea, and his heir Hideyori is a child. A council of regents and leading administrators is intended to preserve the Toyotomi settlement.

PressureHideyoshi's health is failing and his death creates an immediate regency struggle.
LeverageA recently unified archipelago with battle-tested armies and widespread firearms.
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Immediate pressures

  • Hideyoshi's health is failing and his death creates an immediate regency struggle.
  • The Korean war has exhausted forces and sharpened divisions among daimyo.
  • Tokugawa Ieyasu has unmatched resources but not uncontested legal authority.

Usable strengths

  • A recently unified archipelago with battle-tested armies and widespread firearms.
  • Land surveys, castle networks, and daimyo obligations support large mobilizations.
  • Active trade with Portuguese, Chinese, Korean, and Southeast Asian networks.

Hard constraints

  • Unification rests on personal oaths, hostages, offices, and a vulnerable child heir.
  • The regents are partners and rivals; they do not form one automatic faction.
  • Later Tokugawa victory and national seclusion are not established in 1598.

Open decisions

  • Keep Hideyoshi alive, manage his death, or redesign the regency.
  • Withdraw from Korea on different terms or attempt to continue the war.
  • Prevent, alter, or relocate the conflict that historically culminates at Sekigahara.
East & Southeast Asia

Ayutthaya Kingdom

King Naresuan rules an Ayutthaya restored to independence from the Toungoo Empire. Warfare with Burmese polities continues alongside a cosmopolitan trade system linking the Bay of Bengal, South China Sea, and European merchants.

PressureLong wars require manpower, elephants, transport, and control of tributary cities.
LeverageA populous riverine core, strategic capital, elephants, firearms, and regional trade.
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Immediate pressures

  • Long wars require manpower, elephants, transport, and control of tributary cities.
  • Cambodian, Lao, Burmese, and peninsular frontiers create competing priorities.
  • Naresuan's succession is not secure far beyond his own reign.

Usable strengths

  • A populous riverine core, strategic capital, elephants, firearms, and regional trade.
  • Military experience gained during the struggle against Pegu.
  • Access to Portuguese, Persian, Chinese, Japanese, and other merchant communities.

Hard constraints

  • Chronicle army totals are often exaggerated and require staff scrutiny.
  • Tributary claims are not direct administration of every named place.
  • Wet seasons, rivers, food, and transport constrain operations.

Open decisions

  • Continue the offensive against Pegu or negotiate a frontier settlement.
  • Build foreign trade into state power without surrendering control to merchants.
  • Prepare a succession and regional order before Naresuan's death.
East & Southeast Asia

Restored Toungoo Kingdom

Nyaungyan Min has established a restoration centered on Ava while the First Toungoo Empire disintegrates. Lower Myanmar, regional princes, and neighboring states remain outside any settled reunification.

PressureThe old empire's overextension and coercive demands have produced revolt and fragmentation.
LeverageAn Upper Irrawaddy base, dynastic legitimacy, and a program of administrative restoration.
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Immediate pressures

  • The old empire's overextension and coercive demands have produced revolt and fragmentation.
  • Ayutthaya remains a powerful enemy and Pegu's fate is unresolved.
  • Restoration requires local loyalty, governors, revenue, and military superiority.

Usable strengths

  • An Upper Irrawaddy base, dynastic legitimacy, and a program of administrative restoration.
  • Experienced commanders and access to manpower in the Ava region.
  • The opportunity to build a more compact state than the failed first empire.

Hard constraints

  • The name 'Restored Toungoo' describes a project beginning in 1597, not completed unity.
  • Claims over Pegu, Shan regions, and distant territories need campaigns and settlements.
  • Chronicle claims and enormous army figures require cautious use.

Open decisions

  • Choose a compact Irrawaddy restoration or renew wider imperial claims.
  • Set relations with Ayutthaya before another cycle of overextension.
  • Replace princely provinces with governors, or bargain with regional rulers.
East & Southeast Asia

Aceh Sultanate

Sultan Alauddin Riayat Syah al-Mukammil rules a pepper-rich state at the northern entrance to the Strait of Malacca. Aceh competes with Portuguese Malacca and Johor while participating in a wide Muslim and Asian trade network.

PressurePortuguese relief fleets make Malacca difficult to capture even after successful sieges.
LeverageA strategic location, pepper exports, ocean-going shipping, artillery, and regional diplomacy.
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Immediate pressures

  • Portuguese relief fleets make Malacca difficult to capture even after successful sieges.
  • Court succession and elite conflict can rapidly redirect policy.
  • Trade revenue depends on merchants, ports, shipping security, and regional supply.

Usable strengths

  • A strategic location, pepper exports, ocean-going shipping, artillery, and regional diplomacy.
  • Connections across the Bay of Bengal, Red Sea, Ottoman world, and Malay ports.
  • Experience organizing large maritime and siege operations.

Hard constraints

  • Aceh cannot permanently blockade Malacca without sustained fleets and supplies.
  • Religious ties do not produce automatic Ottoman military intervention.
  • Commercial influence is not direct rule over every trading partner.

Open decisions

  • Renew, postpone, or redesign the struggle for Malacca.
  • Build an anti-Portuguese coalition with Johor or other ports.
  • Manage succession before Iskandar Muda's historical rise.
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Twenty years of pressure, without forcing twenty years of history.

The 1598 to 1618 horizon identifies plausible crises and decisions. It does not reserve outcomes for historical winners.

1598

The inherited world

Wars already in motion, uncertain successions, composite monarchies, religious settlements, and long supply lines define what each player can actually do on opening day.

Player diplomacy comes first

Agreements, guarantees, marriages, defections, peace terms, and coalitions can remove or redirect a historical crisis before fate is consulted.

Fate handles genuine uncertainty

Death, weather, accidents, contested plots, and events beyond direct control use transparent staff resolution rather than a required chronology.

Open campaign

Take the opening position. Change the century.

Join the Discord, review the claim board, and build from the world as it exists on 1 January 1598.

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