| Improvement | Tier | Cost | Build time | Effect |
|---|---|---|---|---|
| Worker Amenities 1 | 1 | 400 | 6h | Every turn: +3 workers' opinion of you |
| Worker Amenities 2 | 2 | 800 | 9h | Every turn: +3 workers' opinion of you |
| Cheaper Repairs 1 | 1 | 300 | 4h | Lowers repair costs by 20% |
| Fortification 1 | 1 | 300 | 4h | Enemies have 5% less chance to scout this building successfully |
| Sturdiness 1 | 1 | 400 | 4h | +20% Maximum integrity |
| Cheaper Repairs 2 | 2 | 600 | 6h | Lowers repair costs by 20% |
| Fortification 2 | 2 | 500 | 4h | Enemies have 5% less chance to scout this building successfully |
| Sturdiness 2 | 2 | 800 | 8h | +20% Maximum integrity |
| Fortification 3 | 3 | 600 | 6h | Enemies have 20% less chance to scout this building successfully |
| Fortification 4 | 4 | 800 | 8h | Enemies have 20% less chance to scout this building successfully Enemies can only scout this building up to level 4 |
| Fortification 5 | 5 | 1,000 | 10h | Enemies have 20% less chance to scout this building successfully Enemies can only scout this building up to level 3 |
| Reinforced Defenses 1 | 1 | 250 | 4h | +8 Security |
| Reinforced Defenses 2 | 2 | 500 | 6h | +6 Security |
| Reinforced Defenses 3 | 3 | 800 | 10h | +4 Security |
| Martial Training Equipment | Not recorded | 300 | 5h | Allows you to send robbers to train martial |
| Roguery Training Equipment | Not recorded | 300 | 5h | Allows you to send robbers to train roguery |
| Training Bonus 1 | 1 | 450 | 6h | All workers in the building: +2 |
| Training Speed 1 | 1 | 450 | 6h | 10% faster training |
| Training Bonus 2 | 2 | 800 | 10h | All workers in the building: +2 |
| Training Speed 2 | 2 | 600 | 8h | 15% faster training |
| Training Speed 3 | 3 | 800 | 10h | 20% faster training |
| Safety Measures 1 | 1 | 500 | 6h | +10 Accident protection |
| Safety Measures 2 | 2 | 650 | 9h | +10 Accident protection |
| Night Skill | Not recorded | 600 | 8h | +2 roguery out of working hours |
| Strategic Ambush 1 | 1 | 500 | 6h | When waylaying a cart: +5 chance to successfully intercept a cart |
| Proper Tools 1 | 1 | 500 | 6h | +5 Productivity bonus |
| Strategic Ambush 2 | 2 | 1,200 | 10h | When waylaying a cart: +5 chance to successfully intercept a cart |
| Proper Tools 2 | 2 | 1,200 | 10h | +5 Productivity bonus |
| Wash Station 1 | 1 | 500 | 6h | +10 Hygiene |
| Wash Station 2 | 2 | 700 | 10h | +10 Hygiene |
| Infirmary | Not recorded | 500 | 8h | +10% faster recovery when injured |
| Workforce 1 | 1 | 500 | 6h | Lets you hire one more worker |
| Workforce 2 | 2 | 700 | 7h | Lets you hire one more worker |
| Workforce 3 | 3 | 800 | 8h | Lets you hire one more worker |
| Workforce 4 | 4 | 1,000 | 9h | Lets you hire one more worker |
| Workforce 5 | 5 | 1,200 | 10h | Lets you hire one more worker |
| Straw Mattresses 1 | 1 | 400 | 6h | +10 Energy regeneration |
| Straw Mattresses 2 | 2 | 600 | 8h | +10 Energy regeneration |
| Camouflage 1 | 1 | 600 | 8h | -5% chance to be detected by a guard patrol |
| Camouflage 2 | 2 | 1,200 | 10h | -10% chance to be detected by a guard patrol |
| Weapon Maintenance 1 | 1 | 600 | 8h | equipmentCombat equipment lasts more |
| Weapon Maintenance 2 | 2 | 1,000 | 11h | equipmentCombat equipment lasts more |
| Shelves | 1 | 500 | 7h | Adds one storeroom slot |
| More Shelves | 2 | 600 | 9h | Adds one storeroom slot |
Use this record for a decision
Robber Baron's Fortress belongs to Service. Choose the improvement that changes the actual constraint; an extra sales slot does not substitute for ingredient storage. Compare its prerequisites with your current profession or civic role and use the live construction or repair quote.
Related patch context
Burglary frequency after 0.4.5 ↗
Burglary rates were rebalanced. The notes do not provide a universal safe threshold or guarantee that a security improvement prevents every burglary.
Connected records
Reinforced Defenses ↗
Building improvement · Available in: Alchemist's Lab, Smithy, House, Joiner's Workshop, Inn, Perfumery, Church, Robber Baron's Fortress, Masonry, Tailor's Workshop, Villa · Documented effects: +6 Security; +4 Security; +3 Security; +8 Security; +7 Security
improvements · currentCheaper Repairs ↗
Building improvement · Available in: Alchemist's Lab, Smithy, House, Joiner's Workshop, Inn, Perfumery, Church, Prison, Robber Baron's Fortress, Masonry, Tailor's Workshop, Villa · Documented effects: Lowers repair costs by 10%; Lowers repair costs by 20%; Lowers repair costs by 10
improvements · currentSturdiness ↗
Building improvement · Available in: Alchemist's Lab, Smithy, House, Joiner's Workshop, Inn, Perfumery, Church, Robber Baron's Fortress, Masonry, Tailor's Workshop, Villa · Documented effects: +20% Maximum integrity