A great work, with a feature
Great works, also called wonders of the world, are special holdings that are constructed at great cost and confer lasting benefits. Great works bring new ways to spend a dynasty's amassed fortune by creating new developments that can provide bonuses for the character, its family, and the realm.
Building a great work
Great works can be built in any province by clicking the "View great work construction" button on the province menu. From there, the player has to select from a set of available great work options. Once the first level has been completed it is possible to upgrade up to level 4 with additional features suitable for said great work. Each stage grants 2 feature slots, which allow the ruler to customize the benefits of their great work, up to 8 slots at the maximum level.
Great works have a base construction cost and a monthly construction cost. Both of these costs increase with the number of great works already existing within the realm: 40% more gold per great work, and an additional 80% increase for each great work of the same type. Thus it is best to focus on upgrading one great work to stage 4 at a time, and to build a variety of great works instead of the same one multiple times.
Both stage construction and feature construction can be paused by the ruler, in case they cannot afford the monthly cost of continuing construction.
The cost of great works can be reduced by Construction technology and by having the 
trait.
When building your first great work, the "Build a Great Work" Ambition will add a bonus feature (if it is constructed in your demesne).
Looting and Restoration
The current owner of a Great Work that has not participated in building or restoring it may loot it for gold. Looting a great work grants 300, 500, or 800 gold, depending on how expensive the Great Work is. Looting damages it, dropping its current stage level by one and rendering it non-functional until it is restored. Looting a great work takes a period of time that varies per great work.
Looted great works may be restored to their former glory, and must be restored before the current owner may regain its benefits and begin upgrading it again. Similar to building a great work stage, restoring one has an initial cost and monthly cost. A ruler that looted a great work may not participate in its restoration.
Generic Features
These features are available for multiple Great Work types. See specific Great Work entries for their unique features and a list of available generic features.
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Great Roads | 450 gold | 1 gold | 24 months | +10% Local Movement Speed | ||
| Watchtower Network | 500 gold | 1 gold | 72 months | +10% Levy Size | ||
| Spikes | 450 gold | 1 gold | 24 months | +5% Siege Defense | Can be used to execute prisoners (hidden) Enables Intimidation Attempts |
|
| Tower | 450 gold | 1 gold | 24 months | +5% Siege Defense +0.02 Prestige |
||
| Hypocausts | 300 gold | 1 gold | 12 months | +1% Disease Resistance +0.02 Prestige |
||
| Heating Pipes | 500 gold | 1 gold | 12 months | +2% Disease Resistance +0.02 Prestige |
Requires Hypocausts | |
| Retinue | 550 gold | 1 gold | 24 months | +1 Supply Limit +10% Garrison Size +5.0% Land Organization |
(Hidden) Enables the Recruit an Honor Guard decision, 1000 Light Infantry and 500 Heavy Infantry for 100 gold, 1.10 maintenance, non-reinforcing, only one can be raised at a time. (Hidden) More likely to remove negative province modifiers like Smuggler's Ring |
|
| Torture Chambers | 550 gold | 1 gold | 24 months | +10 Cruel Opinion | Can be used to execute prisoners Enables Intimidation Attempts (Hidden) Enables Private Conversations |
|
| Historical Mural | 300 gold | 1 gold | 30 months | +3 Dynasty Opinion | ||
| Road Tolls | 250 gold | 1 gold | 18 months | +5% Local Tax Modifier | ||
| Tavern | 300 gold | 1 gold | 18 months | +5 Drunkard Opinion | Might allow you to remove Stressed | Not allowed or active for Zealous Muslims |
Events and Decisions
Events and decisions common to multiple Great Works and features.
Intimidation
Intimidating Great Work features add a targeted character decision, Try to Intimidate, to the right click on character menu, with a 2 year cooldown. Higher diplomacy and a craven target raise the chance of success. Only usable within the same realm.
The decision gives the following options:
- Gain +20 opinion with the target for 2 years on success, lose -25 opinion for 2 years on failure
- Gain a favor with the target on success, loss -25 opinion for 2 years on failure
- Gain +5 opinion with the target for 2 years on success, lose -15 opinion for 2 years on failure (higher chance of success than the first option)
Private Conversation
Secluded Great Works features add a targeted character decision, Private Conversation, to the right click on character menu.
Burial Ceremony
Great Works considered Burial Grounds wlll trigger an event on ruler death for a burial ceremony. The options are:
- Expensive Ceremony: Lose between -100 and -400 gold, gain +150 prestige and +50 piety. Characters who liked the dead ruler (+20 opinion or higher) gain +15 opinion of you. Characters who hated the dead ruler (-50 opinion or lower) lose -15 opinion with you.
- Moderate Ceremony: Lose between -50 and -200 gold, gain +50 prestige and +100 piety. Characters who liked the dead ruler (+20 opinion or higher) gain +15 opinion of you
- Cheap Ceremony: Lose between -10 and -100 gold, lose -20 prestige, gain +10 piety
- No Ceremony: Lose -50 prestige, -50 piety. Characters who liked the dead ruler (+20 opinion or higher) lose -15 opinion of you. Characters who hated the dead ruler (-50 opinion or lower) gain +15 opinion with you.
Store a Relic
Great work features that store relics give the Store a Relic decision. Religious artifacts can be stored for an immediate gain of Piety and Prestige. You will lose the artifact. Only one artifact can be stored per Great work.
| Quality | Piety | Prestige |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 200 | 0 |
| 3 | 300 | 100 |
| 4 | 400 | 300 |
| 5 | 500 | 500 |
Looted Artifacts
Some Great Works cause an event when looted that gives the looting character an artifact. Great Works with bells give the Bells artifact. Great works with books give a random artifact from this list:
- Magnum Opus on Stellar Astrology (Quality 1)
- Magnum Opus on Planetary Astrology (Quality 1)
- Court Etiquette - Volume 1
- Kama Sutra
- In Honor of My Beloved (Quality 1)
- The Art of Love
- The Illiad
- The Odyssey
- Speculum Regale
- Apicius
- Kitab al-Tabikh
- A History of Temples
A Town Is Born
An event that fires 50 days after a Great Work feature's completion that grants a holding slot to the Great Work's province. The trigger conditions are:
- At Peace
- Great Work is at least 50 years old
- Great Work has at least 2 features
- Event has not triggered before on the province
Be sure to pause your feature's construction so that it finishes while you are at peace if you want this event to fire.
Crumbling Masterwork
A yearly pulse event that requires a Great Work that is at least 100 years old. Two options:
- Repair the work. Lose -50 gold, gain +40 prestige.
- Sell the pieces. Gain +100 gold.
This event does not cause damage (requiring restoration or losing a stage like looting) to the wonder.
Send Alcoholic Gift
The Brewery and Vineyard features enable a targeted decision to gift alcohol to any character within diplomatic range. +10 opinion for 1 year, with a 1 year cooldown.
Inspires Learning
Great works and features that inspire learning improve the results of the Invite Holy Man to court decision, giving the priest a chance to have higher learning and positives traits like Erudite and Genius.
Great Temples
Grand Cathedral
Requirements: Owner's religion is in the Christian group.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.05 prestige +0.1 piety |
| II | 2200 gold | 5 gold | 375 months | +0.1 prestige +0.1 piety |
| III | 2400 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| IV | 2600 gold | 5 gold | 325 months | +0.2 prestige +0.2 piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Gargoyles | 450 gold | 1 gold | 24 months | +5 Cruel Opinion | Can be used to execute prisoners Enables Intimidation attempts |
Christian religious group |
| Bells | 450 gold | 1 gold | 24 months | +10% Siege Defense | (Hidden) More likely to remove negative province modifiers like Smuggler's Ring | Christian religious group |
| Stained Glass Window | 450 gold | 1 gold | 20 months | +5 Temple Vassal Opinion | Christian religious group | |
| Relic Tomb | 450 gold | 1 gold | 24 months | +0.25 Monthly Piety | Christian religious group Must store a relic within before gaining effects, See Great_works#Store_a_Relic | |
| Grand Basilica | 450 gold | 1 gold | 24 months | +5 City Vassal Opinion | Christian religious group | |
| Catacombs | 450 gold | 1 gold | 24 months | +10% Siege Defense +0.05 Piety |
Christian religious group | |
| Giant Cross | 450 gold | 1 gold | 24 months | +2 Same Religion Opinion | Christian religious group | |
| Golden Bells | 450 gold | 1 gold | 24 months | +5 Proud Opinion | (Hidden) More likely to remove negative province modifiers like Smuggler's Ring | Christian religious group Bells feature |
Great Mosque
Requirements: Owner's religion is in the Muslim group.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.05 prestige +0.1 piety |
| II | 2200 gold | 5 gold | 375 months | +0.1 prestige +0.1 piety |
| III | 2400 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| IV | 2600 gold | 5 gold | 325 months | +0.2 prestige +0.2 piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Minaret | 450 gold | 1 gold | 24 months | +2 Same Religion Opinion | Owner converts counties to their religion faster | Muslim religious group |
| Sahn | 450 gold | 1 gold | 24 months | +5% Disease Resistance | Muslim religious group Requires at least 2 previous features | |
| Qubba | 450 gold | 1 gold | 24 months | +5 Temple Vassal Opinion | Muslim religious group | |
| Magnificent Hanging Lamps | 450 gold | 1 gold | 24 months | +2 Same Religion Opinion | Muslim religious group | |
| Soup Kitchen | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +2.5% Disease Resistance +5 Kind Opinion |
Muslim religious group | |
| School | 450 gold | 1 gold | 24 months | -1.0% Revolt Risk +5 Scholar Opinion |
Owner converts counties to their culture faster Inspires Learning |
Muslim religious group |
| Caravanserai | 450 gold | 1 gold | 24 months | +0.05 Monthly Piety | Muslim religious group | |
| Custodian of the Mosque | 450 gold | 1 gold | 24 months | Unlocks the Custodian of the Mosque minor title (+5 opinion minor title) | Muslim religious group |
Great Synagogue
Requirements: Owner's religion is Jewish
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.05 prestige +0.1 piety |
| II | 2200 gold | 5 gold | 375 months | +0.1 prestige +0.1 piety |
| III | 2400 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| IV | 2600 gold | 5 gold | 325 months | +0.2 prestige +0.2 piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Tallest Building | 450 gold | 1 gold | 24 months | +0.5 Monthly Prestige +1% Morale of Armies |
Jewish relgion | |
| Outer Wall and Open Garden | 450 gold | 1 gold | 24 months | +10% Land Organization | Jewish relgion Requires at least 2 previous features | |
| Holy Ark | 450 gold | 1 gold | 24 months | +5 Temple Vassal Opinion | Jewish relgion | |
| Elaborate Decorations | 450 gold | 1 gold | 24 months | +2 Same Vassal Opinion | Jewish relgion | |
| Choir Rooms | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +0.05 Monthly Piety |
Jewish relgion | |
| School | 450 gold | 1 gold | 24 months | -1.0% Local Revolt Risk +5 Scholar Opinion |
Owner converts counties to their culture faster Inspires Learning |
Jewish relgion |
Great Temple (Pagan)
Requirements: Owner's religion is in the Pagan group and that religion is reformed.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.1 Monthly Prestige |
| II | 2200 gold | 5 gold | 375 months | +0.2 Monthly Prestige |
| III | 2400 gold | 5 gold | 375 months | +0.2 Monthly Prestige +0.1 Monthly Piety |
| IV | 2600 gold | 5 gold | 325 months | +0.3 Monthly Prestige +0.1 Monthly Piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Statue of a God | 450 gold | 1 gold | 24 months | +0.5 Monthly Piety | Pagan religious group | |
| Temple Guards | 450 gold | 1 gold | 24 months | -10.0% Local Revolt Risk | (Hidden) More likely to remove negative province modifiers like Smuggler's Ring | Pagan religious group |
| Sacrificial Altar | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zealous Opinion |
Pagan religious group and Ritual Sacrifice religious feature | |
| Sacred Grove | 450 gold | 1 gold | 24 months | -4.0% Local Revolt Risk | (Hidden) Enables Private Conversations | Pagan religious group |
| Prophecy Room | 450 gold | 1 gold | 24 months | +5 Zealous Opinion | Pagan religious group | |
| Temple Precinct | 450 gold | 1 gold | 24 months | +2 Same Religion Opinion | Pagan religious group | |
| Inner Sanctuary | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Diligent Opinion |
Pagan religious group | |
| Custodian of the Temple | 450 gold | 1 gold | 24 months | Unlocks the Custodian of the Temple minor title (+5 opinion minor title) | Pagan religious group |
Events
Counts as a Burial Ground.
Great Temple (Buddhist)
Requirements: Owner's religion is Buddhist
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.5 prestige +0.1 piety |
| II | 2200 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| III | 2400 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| IV | 2600 gold | 5 gold | 325 months | +0.1 prestige +0.3 piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Chaitya-Grihas | 450 gold | 1 gold | 24 months | -4.0% Local Revolt Risk | Buddhist religion | |
| Gompa | 450 gold | 1 gold | 24 months | +10% Siege Defense | (Hidden) More likely to remove negative province modifiers like Smuggler's Ring | Buddhist religion |
| Bodhi Tree | 450 gold | 1 gold | 24 months | +2 Same Religion Opinion | Buddhist religion | |
| Cave Complex | 450 gold | 1 gold | 24 months | +10% Siege Defense | (Hidden) More likely to remove negative province modifiers like Smuggler's Ring | Buddhist religion |
| Vihara | 450 gold | 1 gold | 24 months | +5% Disease Resistance | Buddhist religion | |
| Buddhist School | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +5 Scholar Opinion |
Owner converts counties to their culture faster Inspires Learning |
Buddhist religion |
| Relic Stupa | 450 gold | 1 gold | 24 months | +.25 Monthly Piety | Buddhist religion Must store a relic within before gaining effects, See Great_works#Store_a_Relic | |
| Commerative Stupa | 450 gold | 1 gold | 24 months | +2 Eastern Opinion | Buddhist religion | |
| Symbolic Stupa | 450 gold | 1 gold | 24 months | +3 Buddhist Opinion | Buddhist religion | |
| Votive Stupa | 450 gold | 1 gold | 24 months | +10% Local Tax Modifier | Buddhist religion Requires at least 6 previous features |
Great Temple (Hindu)
Requirements: Owner's religion is Hindu
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 325 months | +0.05 prestige +0.1 piety |
| II | 2200 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| III | 2400 gold | 5 gold | 375 months | +0.1 prestige +0.2 piety |
| IV | 2600 gold | 5 gold | 325 months | +0.1 prestige +0.3 piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Gopuram | 450 gold | 1 gold | 24 months | +10% Siege Defense +2 Same Religion Opinion |
Hindu religion | |
| Shikhara | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +3 Temple Vassal Opinion |
Owner can convert counties to their religion faster | Hindu religion |
| Maha Mandapa | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +5.0% Land Organization |
Hindu religion | |
| Temple Complex | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +3 Dynasty Opinion |
Hindu religion Requires at least 4 previous features | |
| Calai | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +5 Scholar Opinion |
Owner can convert counties to their culture faster Inspires Learning |
Hindu religion |
| Hospital | 450 gold | 1 gold | 24 months | +5% Disease Resistance +0.05 Monthly Piety |
Hindu religion |
Statues
Ruler Statue
Requirements: Not buildable by Humble characters. Not buildable or active for Iconoclast or Zealous Muslims.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1500 gold | 4 gold | 100 months | -0.5% Local Revolt Risk +0.05 prestige |
| II | 1700 gold | 4 gold | 200 months | -0.5% Local Revolt Risk +0.1 prestige |
| III | 1900 gold | 4 gold | 300 months | -0.5% Local Revolt Risk +0.2 prestige |
| IV | 2100 gold | 4 gold | 400 months | -0.5% Local Revolt Risk +0.3 prestige -1 Short Reign Length |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Gold Plating | 700 gold | 1 gold | 24 months | +0.3 Monthly Prestige | Not compatible with other plating features | |
| Silver Plating | 450 gold | 1 gold | 24 months | +0.2 Monthly Prestige | Not compatible with other plating features | |
| Bronze Plating | 350 gold | 1 gold | 24 months | +0.1 Monthly Prestige | Not compatible with other plating features | |
| Additional Statues | 450 gold | 1 gold | 24 months | +3 Dynasty Opinion | ||
| Watcher of Giants | 450 gold | 1 gold | 24 months | Unlocks the Watcher of Giants minor title (+5 opinion minor title) | ||
| Golden Crown | 450 gold | 1 gold | 575 months | +3 Vassal Opinion | Stage 4 Only |
Statue of a Horse
Requirements: Lunatic trait, Horse culture, or Nomadic government. Not buildable or active for Iconoclast or Zealous Muslims.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1500 gold | 3 gold | 200 months | +0.1 prestige |
| II | 1700 gold | 3 gold | 300 months | +0.1 prestige |
| III | 1900 gold | 3 gold | 400 months | +0.1 prestige |
| IV | 2100 gold | 3 gold | 500 months | +0.1 prestige +10 Horse Opinion |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
Shares plating and additional statues features with Ruler Statue
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Grand Stable | 450 gold | 1 gold | 24 months | +5% Mounted Troops +5% Archers |
||
| Additional Animal Statues | 450 gold | 1 gold | 24 months | +5 Kind Opinion | ||
| Horse Graveyard | 450 gold | 1 gold | 24 months | +5 Horse Opinion |
Fortifications
Grand Fortress
Requirements: Improved Keeps 4 and Construction 4
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 300 months | +.25 Fort Level +0.1 prestige |
| II | 2100 gold | 3 gold | 400 months | +.25 Fort Level +0.1 prestige |
| III | 2200 gold | 3 gold | 500 months | +.25 Fort Level +0.1 prestige +5% Siege Defense |
| IV | 2300 gold | 3 gold | 600 months | +.5 Fort Level +0.1 prestige +5% Siege Defense |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Armory | 450 gold | 1 gold | 24 months | +100 Heavy Infantry | The local smiths option for the Search for a Smith decision will grant quality 2 artifacts, instead of terrible ones, and the option for the Zweihander (See Artifacts#Grand_Fortress). If the smith is hired, the armory gives a higher chance of higher quality artifacts. |
|
| Watch Tower | 450 gold | 1 gold | 48 months | +5.0% Siege Defense +5.0% Arrest Chance |
||
| Vault | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Pit Moat | 450 gold | 1 gold | 24 months | +5.0% Siege Defense | Can be used to Execute prisoners | |
| Spike Moat | 450 gold | 1 gold | 24 months | +5.0% Siege Defense | Can be used to Execute prisoners Enables Intimidation attempts |
Pit Moat feature |
| Water Moat | 450 gold | 1 gold | 24 months | +5.0% Siege Defense | Can be used to Execute prisoners | Pit Moat feature |
| Bone Moat | 450 gold | 1 gold | 24 months | +5.0% Siege Defense | Can be used to Execute prisoners Enables Intimidation attempts |
Pit Moat feature, Cruel Trait, and 50 kills |
| Hidden Passageways | 450 gold | 1 gold | 36 months | +5.0% Assassination Chance | Higher chance of escaping capture after battle | |
| Inner Garden | 450 gold | 1 gold | 24 months | +10.0% Land Organization | (Hidden) Enables Private Conversations | |
| Dueling Room | 450 gold | 1 gold | 24 months | +3 Personal Combat Rating +5 Brave Opinion |
Events
The Armory unique feature modifies the event chain for the Search for a Smith decision. See Armory special effects for details.
Underground City
Requirements: Desert or Mountain county adjacent to a Hill or Mountain county
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 200 months | +0.1 prestige |
| II | 2050 gold | 3 gold | 300 months | +0.1 prestige |
| III | 2100 gold | 3 gold | 400 months | +0.1 prestige +5% Siege Defense |
| IV | 200 gold | 3 gold | 500 months | +0.1 prestige +5% Siege Defense |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Natural Caves | 450 gold | 1 gold | 24 months | +10.0% Plot Power Defense | ||
| Travel Tunnels | 450 gold | 1 gold | 60 months | +10.0% Local Movement Speed | ||
| Precious Metal Mines | 450 gold | 1 gold | 36 months | +10.0% Local Tax Modifier | ||
| Dungeon | 450 gold | 1 gold | 24 months | +10.0% Arrest Chance | ||
| Guardian of the Deep | 450 gold | 1 gold | 12 months | Unlocks the Guardian of the Deep minor title (+5 opinion minor title) |
Great Walls
Requirements: Improved Keeps 4 and Construction 4
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 gold | 3 gold | 300 months | +.25 Fort Level +0.1 prestige |
| II | 1000 gold | 3 gold | 300 months | +.25 Fort Level +0.1 prestige |
| III | 1000 gold | 3 gold | 300 months | +.25 Fort Level +0.1 prestige +5% Siege Defense |
| IV | 1000 gold | 3 gold | 300 months | +.5 Fort Level +0.1 prestige +5% Siege Defense |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Sea Walls | 500 gold | 1 gold | 60 months | +20.0% Siege Defense +5 City Vassal Opinion |
Coastal | |
| Studded Bastions | 500 gold | 1 gold | 60 months | +200 Archers +5% Siege Defense |
||
| Strategic Enclaves | 1000 gold | 5 gold | 120 months | +5.0% Local Tax Modifier +3 City Vassal Opinion |
All walls of the province's holdings will be upgraded to their maximum level | |
| Soaring Fortresses | 500 gold | 1 gold | 60 months | +100 Heavy Infantry +5.0% Siege Defense |
Unlocks the Castellan minor title (+15 opinion minor title) | |
| Hidden Gates | 500 gold | 1 gold | 24 months | +10.0% Siege Defense | Defenders have a higher chance of actively resisting sieges. | |
| Gatehouse Forts | 400 gold | 1 gold | 24 months | +150 Archers +5.0% Siege Defense |
||
| Staged Killing Fields | 400 gold | 1 gold | 24 months | +100 Archers +10.0% Siege Defense |
||
| Deep Defense Architecture | 500 gold | 1 gold | 60 months | +10.0% Siege Defense | ||
| Artificial Islands | 300 gold | 1 gold | 120 months | +10.0% Siege Defense | Coastal | |
| Walker of the Wall | 450 gold | 1 gold | 12 months | Unlocks the Walker of the Wall minor title (+5 opinion minor title) |
Great Harbor
Requirements: Coastal counties only
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1900 gold | 3 gold | 250 months | +2.5% Local Tax Modifier +25 Trade Value +0.1 prestige |
| II | 1000 gold | 3 gold | 300 months | +2.5% Local Tax Modifier +25 Trade Value +0.1 prestige |
| III | 1000 gold | 3 gold | 300 months | +2.5% Local Tax Modifier +25 Trade Value +0.1 prestige |
| IV | 1000 gold | 3 gold | 300 months | +2.5% Local Tax Modifier +25 Trade Value +0.1 prestige -5% Build Cost Modifier |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Cothon | 450 gold | 1 gold | 24 months | +0.50 Supply Limit +10.0% Siege Defense |
||
| Piers | 450 gold | 1 gold | 24 months | +2.5% Local Tax Modifier +0.25 Supply Limit +30.00 Trade Value |
||
| Harbor Office | 450 gold | 1 gold | 24 months | +10.0% Local Tax Modifier +0.25 Supply Limit |
||
| Lighthouse | 450 gold | 1 gold | 24 months | +5.0% Local Tax Modifier +0.25 Supply Limit +30.00 Trade Value |
||
| Military Wharf | 450 gold | 1 gold | 24 months | +50% Galleys +15% Siege Speed |
||
| Master of the Tides | 450 gold | 1 gold | 24 months | Unlocks the Master of the Tides minor title (+5 opinion minor title) |
Great Lighthouse
Requirements: Coastal counties only
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1500 gold | 3 gold | 300 months | +0.1 prestige |
| II | 1000 gold | 3 gold | 300 months | +0.1 prestige |
| III | 1000 gold | 3 gold | 300 months | +5% Local Tax Modifier +0.2 prestige |
| IV | 1000 gold | 3 gold | 300 months | +10% Local Tax Modifier +50 Trade Value +0.3 prestige |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Treasure Chamber | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Giant Banners | 450 gold | 1 gold | 24 months | +5.0% Morale of Armies | ||
| Custodian of the Lighthouse | 450 gold | 1 gold | 24 months | Unlocks the Lighthouse Custodian minor title (+5 opinion minor title) | ||
| Royal Apartments | 450 gold | 1 gold | 24 months | +3 Sex Appeal | (Hidden) Enables Private Conversations |
Cultural
Grand Amphitheater
Requirements: Roman, Italian, or Greek Culture, or Hellenic religion, or religion has the ritual sacrifice feature. Religion must not be peaceful.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2500 Gold | 3 Gold | 300 Months | -1% Local Revolt Risk +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | -1% Local Revolt Risk +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | -1% Local Revolt Risk +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | -1% Local Revolt Risk +0.1 Monthly Prestige +1 Same Religion Opinion |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Naval Spectacle | 450 gold | 1 gold | 24 months | +2.5% Local Tax Modifier +0.10 Monthly Prestige |
||
| Animal Cages | 450 gold | 1 gold | 24 months | +0.10 Monthly Prestige +5 Hunter Opinion |
||
| Hippodrome | 450 gold | 1 gold | 24 months | +5% Mounted Troops | ||
| Training Academy | 450 gold | 1 gold | 24 months | Enables the recruitment of Gladiators (decision grants a high martial courtier with combat traits and high personal combat skill, 5 year cool down) | ||
| Theatre Stage | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +5 Poet Opinion |
||
| Master of the Games | 450 gold | 1 gold | 12 months | Unlocks the Master of the Games minor title (+5 opinion minor title) |
Events
The Blood Games for the Ritual Sacrifice pagan reformation can be held at the Grand Amphitheater, giving 200 extra prestige.
Royal Palace
Requirements:
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2600 Gold | 3 Gold | 315 Months | +250 Retinue Size (retinue bonuses are not applied) +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 315 Months | +250 Retinue Size +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 315 Months | +250 Retinue Size +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 200 Months | +20% Retinue Size +0.1 Monthly Prestige +3% Morale of Armies |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Historical Mural
- Dueling Room
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Fancy Throne Room | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige | ||
| Trap Door | 450 gold | 1 gold | 24 months | +10% Arrest Chance | ||
| Royal Bed Chamber | 250 gold | 1 gold | 24 months | +5% Fertility | (Hidden) Enables Private Conversations | |
| Skull Throne | 450 gold | 1 gold | 10 months | +20 Cruel Opinion | Cruel trait, requires 100 kills to build | |
| Golden Throne | 1000 gold | 1 gold | 25 months | +1.00 Monthly Prestige | ||
| Royal Custodian | 450 gold | 1 gold | 12 months | Unlocks the Royal Custodian minor title (+5 opinion minor title) | ||
| Brewery | 300 gold | 1 gold | 36 months | +10 Drunkard Opinion | Enables the Send Alcohol Gift decision (Hidden) Enables Private Conversations |
|
| Dueling Room | 450 gold | 1 gold | 24 months | +3 Personal Combat Rating +5 Brave Opinion |
Magnificent Gardens
Requirements:
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1800 Gold | 3 Gold | 100 Months | +2.5% Disease Resistance +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 200 Months | +2.5% Disease Resistance +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +2.5% Disease Resistance +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +2.5% Disease Resistance +0.1 Monthly Prestige +0.2 Health |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Fountains | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +5 Poet Opinion |
||
| Fountain of Youth | 550 gold | 1 gold | 36 months | Unlocks the Drink from the Fountain of Youth decision (de-ages the character by 2 years, 10 year cooldown) | Supernatural events on, Mystic trait to build | |
| Hanging Gardens | 450 gold | 1 gold | 24 months | +0.10 Monthly Prestige +5 Gardener Opinion |
||
| Secluded Groves | 450 gold | 1 gold | 24 months | +5.0% Fertility | (Hidden) Enables Private Conversations | |
| Hidden Burial Spot | 450 gold | 1 gold | 24 months | +5.0% Plot Power Increase +5.0% Plot Power Defense |
||
| Poisonous Flowers | 450 gold | 1 gold | 24 months | +5.0% Plot Power Increase | ||
| Herb Garden | 450 gold | 1 gold | 24 months | +0.10 Health | Will periodically give you Herbs | Member of the Hermetic Society |
| Garden Statues | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +5.0% Plot Power Defense |
||
| Vineyard | 500 gold | 1 gold | 36 months | +10 Drunkard Opinion | Enables the Send Alcohol Gift decision (Hidden) Enables Private Conversations |
|
| Pet Graveyard | 450 gold | 1 gold | 24 months | +5 Own Children Opinion |
Learning
Grand University
Requirements to Build: Tolerance 3 and Legalism 3. Government is not Nomadic. Religion is in Christian, Muslim, Jewish, Zoroastrian, or Eastern religious groups, or is Hellenic (reformed or non-reformed).
Requirements for Effects: Religion Is Reformed
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1500 Gold | 3 Gold | 350 Months | +0.05 Culture Technology Points +0.10 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.05 Culture Technology Points +0.10 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.05 Culture Technology Points +0.10 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.05 Culture Technology Points +0.02 Economy Technology Points +0.02 Military Technology Points +0.10 Monthly Prestige |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Great Seminars | 450 gold | 1 gold | 24 months | +10.0% Technology Spread Rate +3 City Vassal Opinion +5 Scholar Opinion |
||
| Wing of Diplomacy | 450 gold | 1 gold | 24 months | +0.05 Culture Technology Points +1 Diplomacy |
||
| Wing of Strategy | 450 gold | 1 gold | 24 months | +0.05 Military Technology Points +1 Martial |
||
| Wing of Finance | 450 gold | 1 gold | 24 months | +0.05 Economy Technology Points +1 Stewardship |
||
| Wing of Secrets | 450 gold | 1 gold | 24 months | +0.05 Culture Technology Points +1 Intrigue |
||
| Wing of Theology | 450 gold | 1 gold | 24 months | +5.0% Technology Spread Rate +1 Learning |
||
| Guardian of Knowledge | 450 gold | 1 gold | 24 months | Unlocks the Guardian of Knowledge minor title (+5 opinion minor title) |
Events
Great Library
Requirements to Build: Government is not Nomadic. Religion is in Christian, Muslim, Jewish, Zoroastrian, or Eastern religious groups, or is Hellenic (reformed or non-reformed).
Requirements for Effects: Religion is Reformed
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 Gold | 3 Gold | 320 Months | +0.05 Culture Technology Points +0.10 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 320 Months | +0.05 Culture Technology Points +0.20 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 320 Months | +5.0% Culture Technology Spread Rate +0.30 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 320 Months | +5.0% Economy Technology Spread Rate +5.0% Military Technology Spread Rate +0.40 Monthly Prestige |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Historical Mural
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Poetry and Drama Collection | 450 gold | 1 gold | 24 months | +5.0% Culture Technology Spread Rate | ||
| Architecture Collection | 450 gold | 1 gold | 24 months | +5.0% Economy Technology Spread Rate | ||
| Math and Philosophy Collection | 450 gold | 1 gold | 24 months | +5.0% Economy Technology Spread Rate | ||
| History Collection | 450 gold | 1 gold | 24 months | +5.0% Military Technology Spread Rate | ||
| Natural Science Collection | 450 gold | 1 gold | 24 months | +5.0% Military Technology Spread Rate | ||
| Scribe Room | 450 gold | 1 gold | 24 months | +1.0% Technology Spread Rate +0.10 Monthly Prestige |
||
| Keeper of the Tomes | 450 gold | 1 gold | 12 months | +5.0% Culture Technology Spread Rate | Unlocks the Keeper of the Tomes minor title (+5 opinion minor title) |
Events
The collection features enable events that grant book artifacts. See Artifacts#Great_Library
While writing a book and owning a Great Library, a yearly event may trigger that improves the quality of the result.
Religious
Grand Mausoleum
Requirements:
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2100 Gold | 3 Gold | 300 Months | -0.25% Local Revolt Risk +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | -0.25% Local Revolt Risk +0.2 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | -0.25% Local Revolt Risk +0.3 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | -0.25% Local Revolt Risk +0.4 Monthly Prestige +3 Dynasty Opinion |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Statues of the Dead | 450 gold | 1 gold | 24 months | +3 Dynasty Opinion | ||
| Eternal Flame | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zunist Opinion +5 Reformed Zunist Opinion |
||
| Unmarked Tombs | 450 gold | 1 gold | 24 months | +10% Assassination Chance | Enables Intimidation attempts | |
| Quadriga Statue | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige | ||
| Keeper of the Dead | 450 gold | 1 gold | 24 months | Unlocks the Keeper of the Dead minor title (+5 opinion minor title) | ||
| Horse Graveyard | 450 gold | 1 gold | 24 months | +5 Horse Opinion | ||
| Pet Graveyard | 450 gold | 1 gold | 24 months | +5 Own Children Opinion |
Events
Counts as a Burial Ground
Great Pyramid
Requirements: Egyptian culture, Lunatic, or Pyramid Building reformation.
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 3000 Gold | 5 Gold | 400 Months | +0.2 Monthly Prestige |
| II | 3500 Gold | 5 Gold | 450 Months | +0.3 Monthly Prestige |
| III | 4000 Gold | 5 Gold | 500 Months | -0.5% Local Revolt Risk +0.3 Monthly Prestige |
| IV | 4500 Gold | 5 Gold | 550 Months | -0.5% Local Revolt Risk +0.4 Monthly Prestige +2 Same Religion Opinion |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Extra Pyramids | 450 gold | 1 gold | 120 months | +0.05 Monthly Prestige +3 Dynasty Opinion |
||
| Great Sphinx of Giza | 450 gold | 1 gold | 60 months | +2 Same Religion Opinion +5 Proud Opinion |
||
| Hidden Room | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen (Hidden) Enables Private Conversations |
||
| Necropolis | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Lime Stone Casing | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +0.01 Monthly Piety |
||
| Traps | 450 gold | 1 gold | 24 months | May kill anyone who tries to conquer the pyramid (Event LT.60401 that fires on change of ownership will kill two random courtiers of the new owner) | ||
| Overseer of the Rites | 450 gold | 1 gold | 12 months | Unlocks the Overseer of the Rites minor title |
Events
Counts as a Burial Ground
Great Stone Circle
Requirements: Pagan religious group
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1000 Gold | 3 Gold | 280 Months | +0.1 Monthly Prestige +0.05 Monthly Piety |
| II | 1100 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige +0.1 Monthly Piety |
| III | 1200 Gold | 3 Gold | 320 Months | +0.1 Monthly Prestige +0.2 Monthly Piety |
| IV | 1300 Gold | 3 Gold | 340 Months | +0.2 Monthly Prestige +0.2 Monthly Piety +2 Same Religion Opinion |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Retinue
- Road Tolls
- Tavern
Unique Features
Aztec Pyramid
Requirements: Aztec religion
Stages
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Rune Stones | 450 gold | 1 gold | 24 months | +3 Dynasty Opinion | Germanic Religion | |
| Custodian of the Stone | 450 gold | 1 gold | 575 months | Unlocks the Custodian of the Stone minor title (+5 opinion minor title) | ||
| More Stones | 450 gold | 1 gold | 575 months | +2 Same Religion Opinion | ||
| Sacrificial Altar | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zealous Opinion |
Pagan religious group and Ritual Sacrifice religious feature | |
| Sacred Grove | 450 gold | 1 gold | 24 months | -4.0% Local Revolt Risk | (Hidden) Enables Private Conversations | Pagan religious group |
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 3000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 3000 Gold | 3 Gold | 300 Months | +0.2 Monthly Prestige |
| III | 3000 Gold | 3 Gold | 300 Months | +0.2 Monthly Prestige +0.1 Monthly Piety |
| IV | 3000 Gold | 3 Gold | 300 Months | +0.2 Monthly Prestige +0.2 Monthly Piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Tower
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
Unique Features
Events
Counts as a Burial Ground
Historical
These are pre-existing historical great works.
Great Pyramid of Khufu
Requirements: Egyptian culture, Lunatic trait, or Pyramid Building reformation.
Location: Faiyum
Initial Stage (769 AD): 3
Stages
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Mythological Beast (Same as Great Sphinx of Giza, Great Pyramid) | 450 gold | 1 gold | 60 months | +2 Same Religion Opinion +5 Proud Opinion |
||
| Hidden Room | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen (Hidden) Enables Private Conversations |
||
| Necropolis | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Traps | 450 gold | 1 gold | 24 months | May kill anyone who tries to conquer the pyramid (Event LT.60401 that fires on change of ownership will kill two random courtiers of the new owner) | ||
| Sacrificial Altar | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zealous Opinion |
Pagan religious group and Ritual Sacrifice religious feature |
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 3000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 3000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
Generic Features
- Roads
- Spikes
- Retinue
- Road Tolls
- Tavern
Unique Features
Same as Great Pyramid
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Extra Pyramids | 450 gold | 1 gold | 120 months | +0.05 Monthly Prestige +3 Dynasty Opinion |
||
| Great Sphinx of Giza | 450 gold | 1 gold | 60 months | +2 Same Religion Opinion +5 Proud Opinion |
||
| Hidden Room | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen (Hidden) Enables Private Conversations |
||
| Necropolis | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Lime Stone Casing | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige +0.01 Monthly Piety |
||
| Traps | 450 gold | 1 gold | 24 months | May kill anyone who tries to conquer the pyramid (Event LT.60401 that fires on change of ownership will kill two random courtiers of the new owner) | ||
| Overseer of the Rites | 450 gold | 1 gold | 12 months | Unlocks the Overseer of the Rites minor title |
Events
Counts as a Burial Ground
Stonehenge
Requirements: Pagan religious group
Location: Wiltshire
Initial Stage (769 AD): 3
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
Generic Features
- Roads
- Spikes
- Retinue
- Road Tolls
- Tavern
Unique Features
Same as Great Stone Circle
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Rune Stones | 450 gold | 1 gold | 24 months | +3 Dynasty Opinion | Germanic Religion | |
| Custodian of the Stone | 450 gold | 1 gold | 575 months | Unlocks the Custodian of the Stone minor title (+5 opinion minor title) | ||
| More Stones | 450 gold | 1 gold | 575 months | +2 Same Religion Opinion | ||
| Sacrificial Altar | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zealous Opinion |
Pagan religious group and Ritual Sacrifice religious feature | |
| Sacred Grove | 450 gold | 1 gold | 24 months | -4.0% Local Revolt Risk | (Hidden) Enables Private Conversations | Pagan religious group |
Mausoleum of Halicarnassus
Requirements:
Location: Lykia
Initial Stage (769 AD): 2
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.2 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.3 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.4 Monthly Prestige |
Generic Features
- Roads
- Spikes
- Tower
- Retinue
- Road Tolls
- Tavern
Unique Features
Same as Grand Mausoleum
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Statues of the Dead | 450 gold | 1 gold | 24 months | +3 Dynasty Opinion | ||
| Eternal Flame | 450 gold | 1 gold | 24 months | -5.0% Local Revolt Risk +5 Zunist Opinion +5 Reformed Zunist Opinion |
||
| Unmarked Tombs | 450 gold | 1 gold | 24 months | +10% Assassination Chance | Enables Intimidation attempts | |
| Quadriga Statue | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige | ||
| Keeper of the Dead | 450 gold | 1 gold | 24 months | Unlocks the Keeper of the Dead minor title (+5 opinion minor title) | ||
| Horse Graveyard | 450 gold | 1 gold | 24 months | +5 Horse Opinion | ||
| Pet Graveyard | 450 gold | 1 gold | 24 months | +5 Own Children Opinion |
Events
Counts as a Burial Ground
Lighthouse of Alexandria
Requirements:
Location: Alexandria
Initial Stage (769 AD): 4
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2500 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.2 Monthly Prestige +5% Local Tax Modifier |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.3 Monthly Prestige +10% Local Tax Modifier +0.10 Trade Route Income |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Historical Mural
Unique Features
Same as Great Lighthouse
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Treasure Chamber | 450 gold | 1 gold | 24 months | Artifacts are less likely to be stolen | ||
| Giant Banners | 450 gold | 1 gold | 24 months | +5.0% Morale of Armies | ||
| Custodian of the Lighthouse | 450 gold | 1 gold | 24 months | Unlocks the Lighthouse Custodian minor title (+5 opinion minor title) | ||
| Royal Apartments | 450 gold | 1 gold | 24 months | +3 Sex Appeal | (Hidden) Enables Private Conversations |
Konark Sun Temple
Requirements:
Location: Kataka
Initial Stage (769 AD): 4
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 Gold | 5 Gold | 500 Months | +0.05 Monthly Prestige +0.1 Monthly Piety |
| II | 2000 Gold | 5 Gold | 500 Months | +0.05 Monthly Prestige +0.2 Monthly Piety |
| III | 2000 Gold | 5 Gold | 500 Months | +0.1 Monthly Prestige +0.2 Monthly Piety |
| IV | 2000 Gold | 5 Gold | 500 Months | +0.1 Monthly Prestige +0.3 Monthly Piety |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Towers
- Hypocausts
- Heating Pipes
- Retinue
Unique Features
Same as Hindu Great Temple
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Gopuram | 450 gold | 1 gold | 24 months | +10% Siege Defense +2 Same Religion Opinion |
Hindu religion | |
| Shikhara | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +3 Temple Vassal Opinion |
Owner can convert counties to their religion faster | Hindu religion |
| Maha Mandapa | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +5.0% Land Organization |
Hindu religion | |
| Temple Complex | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +3 Dynasty Opinion |
Hindu religion Requires at least 4 previous features | |
| Calai | 450 gold | 1 gold | 24 months | -2.0% Local Revolt Risk +5 Scholar Opinion |
Owner can convert counties to their culture faster Inspires Learning |
Hindu religion |
| Hospital | 450 gold | 1 gold | 24 months | +5% Disease Resistance +0.05 Monthly Piety |
Hindu religion |
Apostolic Palace
Requirements:
Location: Roma
Initial Stage (769 AD): 1
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2500 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Towers
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Brewery
- Historical Mural
- Dueling Room
Unique Features
Same as Royal Palace
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Fancy Throne Room | 450 gold | 1 gold | 24 months | +0.05 Monthly Prestige | ||
| Trap Door | 450 gold | 1 gold | 24 months | +10% Arrest Chance | ||
| Royal Bed Chamber | 250 gold | 1 gold | 24 months | +5% Fertility | (Hidden) Enables Private Conversations | |
| Skull Throne | 450 gold | 1 gold | 10 months | +20 Cruel Opinion | Cruel trait, requires 100 kills to build | |
| Golden Throne | 1000 gold | 1 gold | 25 months | +1.00 Monthly Prestige | ||
| Royal Custodian | 450 gold | 1 gold | 12 months | Unlocks the Royal Custodian minor title (+5 opinion minor title) | ||
| Brewery | 300 gold | 1 gold | 36 months | +10 Drunkard Opinion | Enables the Send Alcohol Gift decision (Hidden) Enables Private Conversations |
|
| Dueling Room | 450 gold | 1 gold | 24 months | +3 Personal Combat Rating +5 Brave Opinion |
House of Wisdom
Requirements: Not unreformed Pagan
Location: Baghdad
Initial Stage (769 AD): 1
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 Gold | 3 Gold | 300 Months | +0.05 Cultural Technology Points +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.05 Cultural Technology Points +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.05 Cultural Technology Points +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.05 Cultural Technology Points +0.1 Monthly Prestige |
Generic Features
- Roads
- Watchtower Network
- Spikes
- Towers
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Historical Mural
Unique Features
Same as Great Library
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Poetry and Drama Collection | 450 gold | 1 gold | 24 months | +5.0% Culture Technology Spread Rate | ||
| Architecture Collection | 450 gold | 1 gold | 24 months | +5.0% Economy Technology Spread Rate | ||
| Math and Philosophy Collection | 450 gold | 1 gold | 24 months | +5.0% Economy Technology Spread Rate | ||
| History Collection | 450 gold | 1 gold | 24 months | +5.0% Military Technology Spread Rate | ||
| Natural Science Collection | 450 gold | 1 gold | 24 months | +5.0% Military Technology Spread Rate | ||
| Scribe Room | 450 gold | 1 gold | 24 months | +1.0% Technology Spread Rate +0.10 Monthly Prestige |
||
| Keeper of the Tomes | 450 gold | 1 gold | 12 months | +5.0% Culture Technology Spread Rate | Unlocks the Keeper of the Tomes minor title (+5 opinion minor title) |
Events
Same as Great Library:
The collection features enable events that grant book artifacts. See Artifacts#Great_Library
While writing a book and owning a Great Library, a yearly event may trigger that improves the quality of the result.
Inspires Learning
Great works and features that inspire learning improve the results of the Invite Holy Man to court decision, giving the priest a chance to have higher learning and positives traits like Erudite and Genius.
Petra
Requirements:
Location: Maan
Initial Stage (769 AD): 3
Stages
| Stage | Build Price (Initial) | Build Price (Monthly) | Build time | Effects |
|---|---|---|---|---|
| I | 2000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| II | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| III | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
| IV | 1000 Gold | 3 Gold | 300 Months | +0.1 Monthly Prestige |
Generic Features
- Roads
- Watchtower Network
- Hypocausts
- Heating Pipes
- Retinue
- Road Tolls
- Tavern
- Torture Chamber
- Historical Mural
Unique Features
Same as Underground City
| Name | Build Price (Initial) | Build Price (Monthly) | Build time | Effects | Special Effects | Conditions |
|---|---|---|---|---|---|---|
| Natural Caves | 450 gold | 1 gold | 24 months | +10.0% Plot Power Defense | ||
| Travel Tunnels | 450 gold | 1 gold | 60 months | +10.0% Local Movement Speed | ||
| Precious Metal Mines | 450 gold | 1 gold | 36 months | +10.0% Local Tax Modifier | ||
| Dungeon | 450 gold | 1 gold | 24 months | +10.0% Arrest Chance | ||
| Guardian of the Deep | 450 gold | 1 gold | 12 months | Unlocks the Guardian of the Deep minor title (+5 opinion minor title) |