Territories

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Revision as of 20:26, 14 May 2020 by 2604:5500:c223:f800:c844:14a:a157:9df (talk) (Civilization value: Civilization Value now affects Pop Capacity, not Pop Growth)
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Imperator: Rome tutorial #3 - pops and cities.
A paintable map of territories.

Territories are the smallest unit of land in Imperator: Rome. Territories are grouped into provinces, and provinces are grouped into regions.

Territory mechanics

Fixed:

  • Each territory has a given terrain type.
  • Each territory produces one item of a single type of trade good for its province.
  • Each territory has a culture and religion depending on pops' dominant culture and religion in the territory.
  • Each territory has 5 desired Slave ratio. This means pops in settlements in Republics and Monarchies will all demote to slaves unless a barracks is built.
  • Each territory has 1 base building slot. Settlements have different buildings than cities.
  • Coastal territories can have a port. Ports add one import route to the province. Ports cannot be built by the player.
  • Each nation has a capital.
  • Starting civilization value, starting number of pops including their social group, culture and religion, etc.
  • Some territories (usually major cities) have special unique modifiers. See Unique City Modifiers.
  • Every province has a provincial capital.

Variable:

  • Each territory has its own civilization value.
  • Each territory has a number of Population (pops) living in it.
  • Each territory can have a number of Buildings.
  • Each territory generates Unrest, affecting province loyalty.

Derivatives:

  • Each territory has its own supply limit.
  • Each port has a chance to spawn pirates in an adjacent sea zone.

Actions
These actions can be performed from the territory menu:

  • Recruitment (some units are restricted by the availability of strategic trade goods in the city's province).
  • Colonization.
  • Build.
  • View pop distribution in territory and move pop.
  • Coordinate urban develpoment: doable only in territory with city or metropolis status, spending 25 political influence to increase Civilization level by +1 after 2 years.

Territory categories

Settlements

Settlements represent a sparsely populated area of land, settlements have penalties to output, migration speed, and poptype ratio. Settlements only support one building, but have their own unique set of powerful buildings, so you can specialize them accordingly.

City

Cities have a large bonus to population capacity, and will act as focal urban centers for your empire. Cities have a higher population and make your freemen and citizens happier, but require more slaves to make a trade good production - they will tend to consume, rather than create, resources. More importantly, cities will increase provincial food consumption, due to their higher population and their inability to produce food (any settlement producing any trade good in the "Food" category will lose said trade good when upgraded to a city; a new trade good would be produced in its place). New cities can be founded from settlements, allowing you to shape the world to your own desire. Founding a city takes 2 years to be completed, during this time the Population output is reduced by -100%. Each city can have at least 1 building, and 1 for every 10 pops in the city. The capital city has +1 building slot.

Cost: 200 Cost and 50 Political influence.png

  • Tribal: +25%
  • Tribal Law, Infrastructure Tenets: +50%
  • Heritage, Egypt: -15%
  • Heritage, Etruria: -25%
  • Heritage, Heraclea Pontica: -25%
  • Heritage, Rural: -20%


  • local population capacity: +10
  • local building slot: +2
  • local citizen desired pop ratio: +35
  • local freemen desired pop ratio: +35
  • local slaves desired pop ratio: +25

Metropolis

When a city that is a provincial capital reaches 80 pops, can be designated as metropolis: it cost 400 Cost and 100 Political influence.png), takes 2 years to be completed and during this time the Population output is reduced by -100%. Metropolis is considered the peak of a city’s urban evolution. A metropolis does not have access to any unique buildings (instead using the same buildings as cities), but will improve living conditions for certain pop classes, as well as boost population capacity and is provided with +2 bulding slots.

  • local population capacity: +5
  • local population capacity modifier: +25%
  • local building slot: +2
  • local pop promotion speed modifier: +10%
  • local migration attraction: +2
  • local state trade routes: +1

Provincial capital

Every province owned by a nation has a provincial capital (if a province is split over 2 nations each nation has a separate provincial capital).

Provincial capitals provide bonuses to population capacity (+25%), pop output efficiency (+10%), and migration attraction (+1.00).

Provincial capitals reap the benefits from trade and are the primary targets for slaves during conquests.

It is necessary to occupy the province capital to demand the entire province in a peace deal.

During war, troops can resupply their food from foreign territories if the enemy provincial capital is occupied.

Provincial capitals may be relocated during peace time for a cost of provincial loyalty. Relocating the provincial capital to a settlement lowers provincial loyalty by 30%. Relocating to a city lowers loyalty by 20% and relocating to a metropolis lowers loyalty by 10%.

Each nation also has a national capital. All pops in the national capital have a +10% output modifier (stacking with the capital province and region modifiers). The national capital produces more food, can house more people, has +1 building slot, assimilates and converts pops faster and is more attractive for migration.

Ports and piracy

Ports (indicated by a lighthouse and circling seagulls overhead) are the only cities where ships can dock and get built. Locations of port cities are fixed. Uncolonized provinces do not have a lighthouse icon, but all ports have seagulls flying around them and so can be seen that way.

Each port city has a monthly chance to spawn pirates in an adjacent sea zone, based on the number of trade routes (both incoming and outgoing) in the city's province. Each trade route beyond the first increases the chance by +0.1%, while each trireme docked in the city decreases it by -0.1%.

If pirates spawn, they will be a universally hostile fleet, which will blockade all port cities adjacent to their sea zone, lowering commerce income in their provinces.

Some pirate fleets already exist at the start of the game.

Terrain types

Name Modifiers Description
Terrain desert big.png Desert
  • Global population growth.pngLocal Population Capacity: -30%
  • Attrition.pngAttrition: +1
  • Movement Cost: +10%
  • Local Monthly Food: +1.5
Arid, sandy plains stretch as far as the eye can see in every direction.
Terrain farmland big.png Farmland
  • Global population growth.pngLocal Population Capacity: +50%
  • Slaves needed for Local Surplus: -2
  • Local Monthly Food: +4
This fine arable land is dotted with small clusters of fields, orchards, and grazing livestock.
Terrain forest big.png Forest
  • Attackers get a -1 penalty to their dice rolls.
  • Global population growth.png Local Population Capacity: -10%
  • Movement Cost: +30%
  • Local Monthly Food: +2
A densely wooded place, forest is often quite an obstacle for passing armies.
Terrain hills big.png Hills
  • Attackers get a -1 penalty to their dice rolls.
  • Movement Cost: +20%
  • Local Monthly Food: +2
This place comprises a series of shallow inclines and rolling hills.
Terrain jungle big.png Jungle
  • Global population growth.pngLocal Population Capacity: -20%
  • Supply limit.pngSupply Limit: -50%
  • Movement Cost: +50%
  • Local Monthly Food: +2.50
Verdant, humid jungle, packed with dense vegetation, can be slow going for those who are unused to it.
Terrain marsh big.png Marsh
  • Attackers get a -1 penalty to their dice rolls.
  • Global population growth.pngLocal Population Capacity: -10%
  • Supply limit.pngSupply Limit: -50%
  • Movement Cost: +50%
  • Local Monthly Food: +2
Waterlogged and often dangerous, marshland is hard to navigate, and even more difficult to inhabit.
Terrain mountain big.png Mountains
  • Attackers get a -2 penalty to their dice rolls.
  • Global population growth.png Local Population Capacity: -20%
  • Supply limit.png Supply Limit: -50%
  • Movement Cost: +80%
  • Local Monthly Food: +1.50
Rocky, steep and treacherous, mountainous terrain can prove particularly difficult to navigate.
Terrain plains big.png Plains
  • Local Monthly Food: +3
A sparsely forested place, consisting of sweeping tracts of flat land.

Supply limit

The supply limit determines whether a given army suffers attrition. Base Supply limit.pngSupply Limit is 5 + 0.5 per pop in the city. It is then multipled by Supply Limit Efficiency, the base value of which is 100%, and which can be further modified by the following:

Type Modifier Value
City feature Terrain types: Mountains / Marsh / Jungle -50%
Civilization Value +2% per point
Being the city's owner +25%
Trade goods Vegetables in the province +10%
Surplus of Vegetables in the province
(only affects the province's capital city)
+2.5% per surplus
Invention Supernumerarii (lvl 1) +10%
Fighting Season (lvl 4) +10%
Logistics Division (lvl 11) +10%
Delayed Baggage Train (lvl 15) +25%
Central Reserve (lvl 19) +25%
Diplomacy Having military access to the city +10%

Civilization value

A city's civilization value represents its level of infrastructure and urbanization and is the biggest contributor to pop happiness.

The current civilization value of the capital determines whether a state can change its type of government.

The Civilization value adjusts automatically per month. Its rate of growth can be affected by modifiers given by e.g. laws or inventions. The maximum possible civilization value a city can have is determined by the state the city belongs to. All owned cities will slowly gravitate towards this value if they are below it, and slightly more quickly towards it if they are above it. Positive civilization growth can also never push the local value above that of your capital.

A city's Civilization Value scales between 0 and 100, with each point granting the following local effects:

  • Citizen Happiness: +1%
  • Freemen Happiness: +0.7%
  • Tribesmen Happiness: -0.5%
  • Barbarian Growth: -0.005
  • Supply Limit: +0.02
  • Population Capacity: +0.1
  • Migration Attraction: +0.1
Civilization Value Citizen Happiness Freemen Happiness Tribesmen Happiness Barbarian Growth Population Capacity Supply Limit
0
+50 +50% +35% -25% -0.25 +5 +100%
+100 +100% +70% -50% -0.5 +10 +200%

The civilization value grows naturally over time more or less quickly depending on your laws and inventions, among others. It is limited, however, by a cap dependent on several factors. Civilization will not grow past this threshold, and if the limit falls below the current Civilization Value, it will decrease monthly at a fixed rate of -1% until it meets the cap again.

Scope Source Civilization Cap Maximum Increase
National Base +10%
Settled Tribe Gov Bonus +10%
Federated Tribe +15%
Autocratic Monarchy or Democratic Republic +30%
Monarchies or Republics +35%
Empire or Imperial cult +40%
Centralization Level +0.1% per Point +10% at 100%
Oratory Advance +2% per Advance Level +40% at Level 20
State Religion National Idea +5%
Rights of Man or Rights of Birth Code of Rights Tribal Law +5%
Provincial Gemstones Surplus in Capital +5% Unique
Gemstones Export Bonus +2.5% Unique
Marble Provincial Bonus +2% Unique
Marble Provincial Surplus Bonus +1% Stackable
Glass Provincial Bonus +2% Unique
Glass Provincial Surplus Bonus +1% Stackable
Local Urban Development +1% per Level Stacks until the general Civilization of the Territory reaches 60
Emergent Center of Civilization +5%
Center of Civilization +10%
Emergent Capital +10%
  • Government bonuses are, of course, exclusive to each other.
  • The Centers of Civilization and Emergent Capital modifiers are obtained in the Capital Territory by forming regional tags (ex: Saxonia, Gaul, Albion...)