CK3 Mod Development

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====== Shared Adventurer Camp Buildings ======
The building update is included in **version 0.0.3**, released **18 October 2026**. These native buildings have the same mechanics for all implemented races. Full Sidhelien ancestry changes their artwork; [[:buildings:sidhelien_camp|dedicated elven facilities]] add separate choices.

Rows show **cumulative owner bonuses at the current level**, including earlier levels. Gold costs and days are **per upgrade step, before modifiers**; refunds are the total demolition refund at that level. The starting Pavilion is already built. Internal-slot capacity is the current total. Services are listed for the current tier; they do not stack with earlier tiers.

**Regiments:** maximum regiments means the number you can maintain; regiment size means the size of each regiment. Scheme phase values are days per phase. Percentage points change a chance or cap directly. Construction still requires a camp and a free external slot, or the preceding level for an upgrade.

See [[:buildings:camp_internal_upgrades|internal upgrades]] for the 58 extra facilities installed inside these buildings.

===== Pavilion =====
**Services at every level:** Unlocks the Second officer.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 0 / 0 / 1 | 0 | +0.5 health; +2 external camp slots |
| 2 | 200 / 100 / 300 | 0 | +0.5 health; +3 external camp slots; +1 maximum men-at-arms regiments; +5 days/phase enemy hostile scheme phase duration; +2% travel Safety; +100 provisions Capacity |
| 3 | 350 / 275 / 360 | 0 | +0.5 health; +4 external camp slots; +1 maximum men-at-arms regiments; +15 days/phase enemy hostile scheme phase duration; +4% travel Safety; +250 provisions Capacity; +5% men at arms toughness |
| 4 | 500 / 525 / 420 | 0 | +0.5 health; +4 external camp slots; +2 maximum men-at-arms regiments; +35 days/phase enemy hostile scheme phase duration; +6% travel Safety; +500 provisions Capacity; +10% men at arms toughness |

===== Supply Tent =====
**Services at every level:** Unlocks the Quartermaster officer; Unlocks extra options for the Camp Revelry activity.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +50% provisions Capacity; +25% supply Capacity |
| 2 | 120 / 90 / 210 | 2 | +75% provisions Capacity; +50% supply Capacity |
| 3 | 180 / 180 / 240 | 3 | +100% provisions Capacity; +75% supply Capacity |
| 4 | 240 / 300 / 300 | 4 | +135% provisions Capacity; +100% supply Capacity |
| 5 | 300 / 450 / 360 | 5 | +170% provisions Capacity; +125% supply Capacity |
| 6 | 360 / 630 / 420 | 6 | +220% provisions Capacity; +150% supply Capacity |

===== Barber's Tent =====
^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^ Current services ^
| 1 | 60 / 30 / 180 | 1 | -10 epidemic travel danger; +0.2 health penalty resistance; -3% friendly fatal battle casualties; +0.2 camp gold/month | infection-check score -10 before later multipliers (not a flat infection-chance %) |
| 2 | 120 / 90 / 210 | 2 | -15 epidemic travel danger; +0.4 health penalty resistance; -6% friendly fatal battle casualties; +0.4 camp gold/month | infection-check score -15 before later multipliers (not a flat infection-chance %) |
| 3 | 180 / 180 / 240 | 3 | -20 epidemic travel danger; +0.6 health penalty resistance; -9% friendly fatal battle casualties; +0.6 camp gold/month | infection-check score -20 before later multipliers (not a flat infection-chance %) |
| 4 | 240 / 300 / 300 | 3 | -27 epidemic travel danger; +0.8 health penalty resistance; -12% friendly fatal battle casualties; +0.8 camp gold/month | infection-check score -25 before later multipliers (not a flat infection-chance %) |
| 5 | 300 / 450 / 360 | 3 | -34 epidemic travel danger; +1 health penalty resistance; -15% friendly fatal battle casualties; +1 camp gold/month | infection-check score -30 before later multipliers (not a flat infection-chance %) |
| 6 | 360 / 630 / 420 | 3 | -44 epidemic travel danger; +1.5 health penalty resistance; -18% friendly fatal battle casualties; +1.2 camp gold/month | infection-check score -40 before later multipliers (not a flat infection-chance %) |

===== Baggage Train =====
**Services at every level:** Scout for Talent event weight ×5; post-event cooldown 2 months instead of 4; Unlocks the Head Porter officer; +100 transport-contract selection weight (not +100% chance).

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +2% travel Speed; +10% provisions Capacity; +20% supply Capacity; +1 skirmishers max size |
| 2 | 120 / 90 / 210 | 2 | +4% travel Speed; +20% provisions Capacity; +40% supply Capacity; +1 skirmishers max size; +1 archers max size |
| 3 | 180 / 180 / 240 | 3 | +6% travel Speed; +30% provisions Capacity; +60% supply Capacity; +1 skirmishers max size; +1 archers max size; +1 heavy infantry max size |
| 4 | 240 / 300 / 300 | 4 | +8% travel Speed; +40% provisions Capacity; +80% supply Capacity; +1 skirmishers max size; +1 archers max size; +1 heavy infantry max size; +1 light cavalry max size |
| 5 | 300 / 450 / 360 | 5 | +10% travel Speed; +50% provisions Capacity; +100% supply Capacity; +1 skirmishers max size; +1 archers max size; +1 heavy infantry max size; +1 light cavalry max size; +1 heavy cavalry max size |
| 6 | 360 / 630 / 420 | 6 | +12% travel Speed; +60% provisions Capacity; +120% supply Capacity; +1 skirmishers max size; +1 archers max size; +1 heavy infantry max size; +1 light cavalry max size; +1 heavy cavalry max size; +1 siege weapon max size |

===== Mess Tent =====
**Services at every level:** Unlocks the Chief Cook officer; +0.5 to Gather Provisions reward multiplier: ceil(random 200–400 × (1 + relevant skill / 100 + 0.5)), before other rewards; Unlocks extra options for the Camp Revelry activity.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +3 follower and guest opinion; +5% stress Loss; -5 days/phase Prowess scheme phase duration |
| 2 | 120 / 90 / 210 | 1 | +6 follower and guest opinion; +10% stress Loss; -10 days/phase Prowess scheme phase duration |
| 3 | 180 / 180 / 240 | 2 | +9 follower and guest opinion; +15% stress Loss; -15 days/phase Prowess scheme phase duration |
| 4 | 240 / 300 / 300 | 2 | +12 follower and guest opinion; +20% stress Loss; -20 days/phase Prowess scheme phase duration |
| 5 | 300 / 450 / 360 | 3 | +15 follower and guest opinion; +25% stress Loss; -25 days/phase Prowess scheme phase duration |
| 6 | 360 / 630 / 420 | 3 | +18 follower and guest opinion; +30% stress Loss; -30 days/phase Prowess scheme phase duration |

===== Roaring Campfire =====
**Services at every level:** Scout for Talent event weight ×5; post-event cooldown 2 months instead of 4; Unlocks Fireside Chat intent for Camp Revelry activity.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +1 Number of knights; +2% knight effectiveness; +1 maximum men-at-arms regiments |
| 2 | 120 / 90 / 210 | 1 | +2 Number of knights; +4% knight effectiveness; +1 maximum men-at-arms regiments |
| 3 | 180 / 180 / 240 | 2 | +3 Number of knights; +6% knight effectiveness; +1 maximum men-at-arms regiments |
| 4 | 240 / 300 / 300 | 2 | +4 Number of knights; +8% knight effectiveness; +2 maximum men-at-arms regiments |
| 5 | 300 / 450 / 360 | 3 | +5 Number of knights; +10% knight effectiveness; +2 maximum men-at-arms regiments |
| 6 | 360 / 630 / 420 | 3 | +6 Number of knights; +12% knight effectiveness; +2 maximum men-at-arms regiments |

===== Proving Grounds =====
**Services at every level:** Unlocks the Master of Arms officer.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +1 men-at-arms regiment size; +1% men at arms damage |
| 2 | 120 / 90 / 210 | 2 | +1 men-at-arms regiment size; +2% men at arms damage; -5% men-at-arms recruitment cost |
| 3 | 180 / 180 / 240 | 3 | +1 men-at-arms regiment size; +4% men at arms damage; -5% men-at-arms recruitment cost |
| 4 | 240 / 300 / 300 | 4 | +2 men-at-arms regiment size; +6% men at arms damage; -10% men-at-arms recruitment cost |
| 5 | 300 / 450 / 360 | 5 | +2 men-at-arms regiment size; +10% men at arms damage; -10% men-at-arms recruitment cost |
| 6 | 360 / 630 / 420 | 6 | +2 men-at-arms regiment size; +14% men at arms damage; -15% men-at-arms recruitment cost |

===== Camp Perimeter =====
**Services at every level:** Enables the Forward Scouts travel option.

^ Level ^ Gold / refund / days ^ Internal slots ^ Cumulative owner bonuses ^
| 1 | 60 / 30 / 180 | 1 | +3 travel Safety; -5 percentage points enemy hostile scheme success-chance cap; +5 travel Speed; +5% camp travel speed |
| 2 | 120 / 90 / 210 | 2 | +6 travel Safety; -10 percentage points enemy hostile scheme success-chance cap; +10 travel Speed; +10% camp travel speed |
| 3 | 180 / 180 / 240 | 3 | +9 travel Safety; -15 percentage points enemy hostile scheme success-chance cap; +15 travel Speed; +15% camp travel speed |
| 4 | 240 / 300 / 300 | 3 | +12 travel Safety; -20 percentage points enemy hostile scheme success-chance cap; +20 travel Speed; +20% camp travel speed |
| 5 | 300 / 450 / 360 | 3 | +15 travel Safety; -25 percentage points enemy hostile scheme success-chance cap; +25 travel Speed; +25% camp travel speed |
| 6 | 360 / 630 / 420 | 3 | +18 travel Safety; -30 percentage points enemy hostile scheme success-chance cap; +30 travel Speed; +30% camp travel speed |

[[:buildings:all_implemented|Building catalogue]] · [[:systems:progression|Research and buildings]]