buildings:orog
Table of Contents
Orog Buildings
The building rebalance is included in version 0.0.3, released 18 October 2026. 11 families have eight tiers each. Each two-tier pair requires the matching era study.
Placement and bonus scope
Building access follows province culture rather than ancestry alone. Ordinary castle, city, temple and tribal slots qualify unless a family adds a restriction below. Regional buildings replace some shared options; the construction tooltip shows your available choices.
Each row gives the total at that tier, replacing lower levels. Gold is paid for that step before modifiers. Holding effects apply locally; County effects apply to its county; Capital county means the duchy capital county, not every county in the duchy; Holder effects affect the building owner. Stationed bonuses affect regiments stationed at that holding, not the whole army. Negative construction time/cost, upkeep and travel danger are beneficial. Development growth is not an instant Development level.
Choose a specialization
| Family | Purpose |
|---|---|
| Fungal Gardens | Managed fungal vaults feed fortified settlements and support stable supplies. |
| Cavern Herds | Cavern husbandry supports income, levies and reserve provisioning. |
| Ore Workings | Deep mineworks finance industry and provide economical construction materials. |
| War Forges | War forges develop heavy-infantry shock, armor and pike equipment. |
| Muster Halls | Muster halls organize pikes, levies and protected reserve positions. |
| Gate Defenses | Layered gates combine forts, garrisons and prepared defensive approaches. |
| Supply Galleries | Supply galleries support construction, garrison provisions and organized reinforcements. |
| Lizard Pens | Lizard cavalry training develops heavy shock, armor, pursuit and screening. |
| Exchange Halls | Exchange halls organize income, development and economical local commerce. |
| Clan Assembly | The capital assembly earns prestige, organizes control and develops the fortified seat of government. |
| Battle-Priest Halls | Torazan temple halls support piety, military levies, control and armored service. |
Fungal Gardens
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Fungal Cultivation | 150 | Holding: +0.35 gold/month, +200 supply |
| 2 | Fungal Cultivation | 250 | Holding: +0.65 gold/month, +400 supply |
| 3 | Managed Fungal Beds | 340 | Holding: +0.95 gold/month, +600 supply, +2.5% garrison size |
| 4 | Managed Fungal Beds | 500 | Holding: +1.25 gold/month, +800 supply, +2.5% garrison size |
| 5 | Vault Agriculture | 750 | Holding: +1.55 gold/month, +1000 supply, +5% garrison size, +5% supply |
| 6 | Vault Agriculture | 1110 | Holding: +1.85 gold/month, +1200 supply, +5% garrison size, +5% supply |
| 7 | Great Harvest Vaults | 1600 | Holding: +2.15 gold/month, +1400 supply, +7.5% garrison size, +10% supply; County: +0.05 monthly control growth |
| 8 | Great Harvest Vaults | 2240 | Holding: +2.45 gold/month, +1600 supply, +7.5% garrison size, +10% supply; County: +0.05 monthly control growth |
Cavern Herds
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Cavern Husbandry | 150 | Holding: +50 levies; Holding: +0.3 gold/month, +150 supply |
| 2 | Cavern Husbandry | 250 | Holding: +90 levies; Holding: +0.475 gold/month, +300 supply |
| 3 | Organized Herding | 340 | Holding: +130 levies; Holding: +0.65 gold/month, +450 supply; County: +2.5% levy reinforcement |
| 4 | Organized Herding | 500 | Holding: +170 levies; Holding: +0.825 gold/month, +600 supply; County: +2.5% levy reinforcement |
| 5 | Deep Breeding | 750 | Holding: +210 levies; Holding: +1 gold/month, +750 supply, +2.5% supply; County: +5% levy reinforcement |
| 6 | Deep Breeding | 1110 | Holding: +250 levies; Holding: +1.175 gold/month, +900 supply, +2.5% supply; County: +5% levy reinforcement |
| 7 | Dominion Herds | 1600 | Holding: +290 levies; Holding: +1.35 gold/month, +1050 supply, +5% supply, +2% holding taxes; County: +7.5% levy reinforcement |
| 8 | Dominion Herds | 2240 | Holding: +330 levies; Holding: +1.525 gold/month, +1200 supply, +5% supply, +2% holding taxes; County: +7.5% levy reinforcement |
Ore Workings
Placement: Terrain: hills, mountains, desert mountains.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Ore Prospecting | 200 | Holding: +0.5 gold/month |
| 2 | Ore Prospecting | 350 | Holding: +0.95 gold/month |
| 3 | Reinforced Galleries | 485 | Holding: +1.4 gold/month, -1% construction cost |
| 4 | Reinforced Galleries | 725 | Holding: +1.85 gold/month, -1% construction cost |
| 5 | Deep Extraction | 1100 | Holding: +2.3 gold/month, -2% construction cost, +1.5% holding taxes |
| 6 | Deep Extraction | 1640 | Holding: +2.75 gold/month, -2% construction cost, +1.5% holding taxes |
| 7 | Integrated Mineworks | 2375 | Holding: +3.2 gold/month, -3% construction cost, +3% holding taxes, +300 supply |
| 8 | Integrated Mineworks | 3335 | Holding: +3.65 gold/month, -3% construction cost, +3% holding taxes, +300 supply |
War Forges
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | War Smithing | 150 | Holding: +20% stationed heavy infantry damage, +15% stationed heavy infantry toughness |
| 2 | War Smithing | 250 | Holding: +30% stationed heavy infantry damage, +22.5% stationed heavy infantry toughness |
| 3 | Standardized Mail | 340 | Holding: +40% stationed heavy infantry damage, +30% stationed heavy infantry toughness, +2.5% stationed pikemen toughness |
| 4 | Standardized Mail | 500 | Holding: +50% stationed heavy infantry damage, +37.5% stationed heavy infantry toughness, +2.5% stationed pikemen toughness |
| 5 | Tempered Armor | 750 | Holding: +60% stationed heavy infantry damage, +45% stationed heavy infantry toughness, +5% stationed pikemen toughness, -1.5% construction cost |
| 6 | Tempered Armor | 1110 | Holding: +70% stationed heavy infantry damage, +52.5% stationed heavy infantry toughness, +5% stationed pikemen toughness, -1.5% construction cost |
| 7 | Masterwork Harness | 1600 | Holding: +80% stationed heavy infantry damage, +60% stationed heavy infantry toughness, +7.5% stationed pikemen toughness, -3% construction cost; County: +5% levy reinforcement |
| 8 | Masterwork Harness | 2240 | Holding: +90% stationed heavy infantry damage, +67.5% stationed heavy infantry toughness, +7.5% stationed pikemen toughness, -3% construction cost; County: +5% levy reinforcement |
Muster Halls
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Clan Musters | 150 | Holding: +100 levies; Holding: +20% stationed pikemen damage, +20% stationed pikemen toughness |
| 2 | Clan Musters | 250 | Holding: +175 levies; Holding: +30% stationed pikemen damage, +27.5% stationed pikemen toughness |
| 3 | Drilled Companies | 340 | Holding: +250 levies; Holding: +40% stationed pikemen damage, +35% stationed pikemen toughness; County: +2.5% levy reinforcement |
| 4 | Drilled Companies | 500 | Holding: +325 levies; Holding: +50% stationed pikemen damage, +42.5% stationed pikemen toughness; County: +2.5% levy reinforcement |
| 5 | Stronghold Legions | 750 | Holding: +400 levies; Holding: +60% stationed pikemen damage, +50% stationed pikemen toughness, +2.5% garrison size; County: +5% levy reinforcement |
| 6 | Stronghold Legions | 1110 | Holding: +475 levies; Holding: +70% stationed pikemen damage, +57.5% stationed pikemen toughness, +2.5% garrison size; County: +5% levy reinforcement |
| 7 | Dominion Commands | 1600 | Holding: +550 levies; Holding: +80% stationed pikemen damage, +65% stationed pikemen toughness, +5% garrison size, +2 defender advantage; County: +7.5% levy reinforcement |
| 8 | Dominion Commands | 2240 | Holding: +625 levies; Holding: +90% stationed pikemen damage, +72.5% stationed pikemen toughness, +5% garrison size, +2 defender advantage; County: +7.5% levy reinforcement |
Gate Defenses
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Gatecraft | 150 | Holding: +150 garrison; Holding: +1 fort level |
| 2 | Gatecraft | 250 | Holding: +300 garrison; Holding: +1 fort level |
| 3 | Layered Defenses | 340 | Holding: +450 garrison; Holding: +2 fort level, +10% hostile raid time |
| 4 | Layered Defenses | 500 | Holding: +600 garrison; Holding: +2 fort level, +10% hostile raid time |
| 5 | Fortress Engineering | 750 | Holding: +750 garrison; Holding: +3 fort level, +20% hostile raid time, +2 defender advantage |
| 6 | Fortress Engineering | 1110 | Holding: +900 garrison; Holding: +3 fort level, +20% hostile raid time, +2 defender advantage |
| 7 | Great Citadels | 1600 | Holding: +1050 garrison; Holding: +4 fort level, +30% hostile raid time, +4 defender advantage, +10% garrison size |
| 8 | Great Citadels | 2240 | Holding: +1200 garrison; Holding: +5 fort level, +30% hostile raid time, +4 defender advantage, +10% garrison size |
Supply Galleries
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Stored Provisions | 150 | Holding: +300 supply, -2% construction time |
| 2 | Stored Provisions | 250 | Holding: +600 supply, -4% construction time |
| 3 | Supply Organization | 340 | Holding: +900 supply, -6% construction time, +2.5% garrison size |
| 4 | Supply Organization | 500 | Holding: +1200 supply, -8% construction time, +2.5% garrison size |
| 5 | Military Depots | 750 | Holding: +1500 supply, -10% construction time, +5% garrison size, +5% supply |
| 6 | Military Depots | 1110 | Holding: +1800 supply, -12% construction time, +5% garrison size, +5% supply |
| 7 | Coordinated Campaigns | 1600 | Holding: +2100 supply, -14% construction time, +7.5% garrison size, +10% supply; County: +10% levy reinforcement |
| 8 | Coordinated Campaigns | 2240 | Holding: +2400 supply, -16% construction time, +7.5% garrison size, +10% supply; County: +10% levy reinforcement |
Lizard Pens
Placement: Terrain: hills, mountains, desert mountains.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Lizard Husbandry | 200 | Holding: +20% stationed heavy cavalry damage, +10% stationed heavy cavalry toughness |
| 2 | Lizard Husbandry | 350 | Holding: +30% stationed heavy cavalry damage, +17.5% stationed heavy cavalry toughness |
| 3 | Armored Saddles | 485 | Holding: +40% stationed heavy cavalry damage, +25% stationed heavy cavalry toughness, +5% stationed heavy cavalry pursuit |
| 4 | Armored Saddles | 725 | Holding: +50% stationed heavy cavalry damage, +32.5% stationed heavy cavalry toughness, +5% stationed heavy cavalry pursuit |
| 5 | Rider Training | 1100 | Holding: +60% stationed heavy cavalry damage, +40% stationed heavy cavalry toughness, +10% stationed heavy cavalry pursuit, +5% stationed heavy cavalry screen |
| 6 | Rider Training | 1640 | Holding: +70% stationed heavy cavalry damage, +47.5% stationed heavy cavalry toughness, +10% stationed heavy cavalry pursuit, +5% stationed heavy cavalry screen |
| 7 | Elite Rider Doctrine | 2375 | Holding: +80% stationed heavy cavalry damage, +55% stationed heavy cavalry toughness, +15% stationed heavy cavalry pursuit, +10% stationed heavy cavalry screen, +5% supply |
| 8 | Elite Rider Doctrine | 3335 | Holding: +90% stationed heavy cavalry damage, +62.5% stationed heavy cavalry toughness, +15% stationed heavy cavalry pursuit, +10% stationed heavy cavalry screen, +5% supply |
Exchange Halls
Placement: No additional terrain restriction.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Hold Barter | 150 | Holding: +0.35 gold/month; County: +2.5% development growth |
| 2 | Hold Barter | 250 | Holding: +0.6 gold/month; County: +5% development growth |
| 3 | Regulated Exchanges | 340 | Holding: +0.85 gold/month; County: +7.5% development growth, +1 popular opinion |
| 4 | Regulated Exchanges | 500 | Holding: +1.1 gold/month; County: +10% development growth, +1 popular opinion |
| 5 | Merchant Agreements | 750 | Holding: +1.35 gold/month, +2% holding taxes; County: +12.5% development growth, +2 popular opinion |
| 6 | Merchant Agreements | 1110 | Holding: +1.6 gold/month, +2% holding taxes; County: +15% development growth, +2 popular opinion |
| 7 | Dominion Accounts | 1600 | Holding: +1.85 gold/month, +4% holding taxes, -2% construction cost; County: +17.5% development growth, +3 popular opinion |
| 8 | Dominion Accounts | 2240 | Holding: +2.1 gold/month, +4% holding taxes, -2% construction cost; County: +20% development growth, +3 popular opinion |
Clan Assembly
Placement: Holding owner's capital province only; moving the capital disables it.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Clan Councils | 150 | Holding: -0.5% construction time; County: +0.025 monthly control growth; Holder: +0.15 prestige/month |
| 2 | Clan Councils | 250 | Holding: -1% construction time; County: +0.05 monthly control growth; Holder: +0.3 prestige/month |
| 3 | Recognized Authority | 340 | Holding: -1.5% construction time, +2.5% garrison size; County: +0.075 monthly control growth; Holder: +0.45 prestige/month |
| 4 | Recognized Authority | 500 | Holding: -2% construction time, +2.5% garrison size; County: +0.1 monthly control growth; Holder: +0.6 prestige/month |
| 5 | Stronghold Charters | 750 | Holding: -2.5% construction time, +5% garrison size, +2% holding taxes; County: +0.125 monthly control growth; Holder: +0.75 prestige/month |
| 6 | Stronghold Charters | 1110 | Holding: -3% construction time, +5% garrison size, +2% holding taxes; County: +0.15 monthly control growth; Holder: +0.9 prestige/month |
| 7 | Dominion Governance | 1600 | Holding: -3.5% construction time, +7.5% garrison size, +4% holding taxes, +2 defender advantage; County: +0.175 monthly control growth; Holder: +1.05 prestige/month |
| 8 | Dominion Governance | 2240 | Holding: -4% construction time, +7.5% garrison size, +4% holding taxes, +2 defender advantage; County: +0.2 monthly control growth; Holder: +1.2 prestige/month |
Battle-Priest Halls
Placement: Temple holding only; County holder must follow Torazan.
Base time per step: 1,095 days (3 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Clan Councils | 150 | Holding: +40 levies; Holder: +0.1 piety/month |
| 2 | Clan Councils | 250 | Holding: +75 levies; Holder: +0.2 piety/month |
| 3 | Recognized Authority | 340 | Holding: +110 levies; County: +0.025 monthly control growth; Holder: +0.3 piety/month |
| 4 | Recognized Authority | 500 | Holding: +145 levies; County: +0.025 monthly control growth; Holder: +0.4 piety/month |
| 5 | Stronghold Charters | 750 | Holding: +180 levies; Holding: +2.5% stationed heavy infantry toughness; County: +0.05 monthly control growth; Holder: +0.5 piety/month |
| 6 | Stronghold Charters | 1110 | Holding: +215 levies; Holding: +2.5% stationed heavy infantry toughness; County: +0.05 monthly control growth; Holder: +0.6 piety/month |
| 7 | Dominion Governance | 1600 | Holding: +250 levies; Holding: +5% stationed heavy infantry toughness; County: +0.075 monthly control growth, +5% levy reinforcement; Holder: +0.7 piety/month |
| 8 | Dominion Governance | 2240 | Holding: +285 levies; Holding: +5% stationed heavy infantry toughness; County: +0.075 monthly control growth, +5% levy reinforcement; Holder: +0.8 piety/month |
Authority and cavalry: capital-assembly authority discounts and the two-regiment lizard-rider cap remain unchanged. Battle-Priest Halls retain their Torazan and temple requirements.
Fully restart CK3 after installing the mod changes. Existing saves are sufficient; no new game is required for these building bonuses. Existing IDs, research gates, costs, terrain rules and icons are preserved. Updating or reading the wiki needs no restart.
Ordinary buildings · Duchy buildings · Research and building guides · Race progression
buildings/orog.txt · Last modified: by ck3wiki-maintenance