Table of Contents
Dwarven Duchy Buildings
The building rebalance is included in version 0.0.3, released 18 October 2026. Three specializations each have three tiers. Choose one chain for the duchy capital's separate slot.
Placement and bonus scope
Requires a qualifying castle, city or temple in the duchy capital, the appropriate province culture, and county-holder ownership of the associated duchy title. Tribal holdings do not gain a duchy slot. Ownership and culture must continue to satisfy the enabled conditions.
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 |
|---|---|
| High Clan Council | The high council organizes taxes, control, prestige and stewardship teaching. |
| Mountain Citadel | The mountain citadel unites fortified gates, garrisons, supply and organized reserves. |
| Great Foundry | The great foundry supplies armored infantry, crossbows and economical construction. |
High Clan Council
Base time per step: 1,825 days (5 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Thane Assemblies | 485 | Capital county: +0.1 monthly control growth, +5% holding taxes; Holder: +0.25 prestige/month |
| 2 | Royal Councils | 725 | Capital county: +0.2 monthly control growth, +10% holding taxes; Holder: +0.5 prestige/month, +2% stewardship lifestyle XP |
| 3 | High Clan Compacts | 1100 | Capital county: +0.3 monthly control growth, +15% holding taxes, +5 popular opinion; Holder: +0.75 prestige/month, +4% stewardship lifestyle XP |
Mountain Citadel
Base time per step: 1,825 days (5 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Layered Hold Defenses | 485 | Holding: +250 garrison; Holding: +1 fort level; Capital county: +15% supply, +15% garrison size, +15% hostile raid time, +3 defender advantage |
| 2 | Engineered Mountain Citadels | 725 | Holding: +500 garrison; Holding: +2 fort level; Capital county: +30% supply, +30% garrison size, +30% hostile raid time, +6 defender advantage, +10% levy reinforcement |
| 3 | Engineered Mountain Citadels | 1100 | Holding: +750 garrison; Holding: +3 fort level; Capital county: +45% supply, +45% garrison size, +45% hostile raid time, +9 defender advantage, +20% levy reinforcement |
Great Foundry
Base time per step: 1,825 days (5 years), before speed modifiers.
| Tier | Required research | Gold for this step | Total effects and recipients |
|---|---|---|---|
| 1 | Tempered Steel | 485 | Holding: +0.5 gold/month, +10% stationed heavy infantry damage, +7.5% stationed heavy infantry toughness, -3% construction cost; Capital county: +5% development growth |
| 2 | Master Armourers | 725 | Holding: +1 gold/month, +20% stationed heavy infantry damage, +15% stationed heavy infantry toughness, -6% construction cost, +10% stationed archers damage; Capital county: +10% development growth |
| 3 | Great Foundries | 1100 | Holding: +1.5 gold/month, +30% stationed heavy infantry damage, +22.5% stationed heavy infantry toughness, -9% construction cost, +20% stationed archers damage; Capital county: +15% development growth |
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