# Skills

Skills are research discoveries that unlock new abilities, buildings, and bonuses in Anno 117: Pax Romana. They are organized into categories and must be unlocked through the skill tree.

## Overview

- **Type:** Inspiration skills are placed deeper in the research tree and require specific conditions to unlock
- **Unlock Requirements:** Each skill node has two conditions - a required amount of generated knowledge and a secondary requirement (e.g., building a specific structure)
- **Progression:** Once unlocked, a skill node can serve as a starting point for further research

## Skill Categories

- [Civic](./civic.md) - City administration upgrades, service building improvements, and area effects
- [Economy](./economy.md) - Production improvements, workforce bonuses, and economic mechanics
- [Military](./military.md) - Military units, defensive structures, naval combat, and warfare enhancements

## Skill Types

| Type | Description |
|------|-------------|
| Inspiration | Advanced skills deeper in the research tree requiring special unlock conditions |

## Usage Tips

- **Plan Ahead:** Review skill requirements before committing to a research path
- **Build Requirements:** Many skills require constructing specific buildings as prerequisites
- **Knowledge Generation:** Ensure adequate knowledge production to unlock deeper skill nodes

---

## All Skills

### Civic

- [Aesthetic Aedificator](./aesthetic-aedificator.md) - Halves construction costs for all Ornaments (220,000 Knowledge)
- [Aleatoria](./aleatoria.md) - Unlocks Gambling House, becomes a need for Equites and beyond (180,000 Knowledge)
- [Alliance Treaties](./alliance-treaties.md) - Allows you to propose full military pacts with another party (220,000 Knowledge)
- [Asclepian Codices](./asclepius-codices.md) - Medici response time -20%, disease-fighting squads heal affected buildings more quickly (360,000 Knowledge)
- [Cerere et Baccho](./cerere-et-baccho.md) - Unlocks Beer as a need for all population tiers in Latium (750,000 Knowledge)
- [Clever Minds (Recruitment Drive)](./clever-minds.md) - Repeatable Research, yields random Legendary Specialist in Culture, Religion, or Research
- [Cohabitive Collaboration](./productive-cohabitation.md) - Officia Specialist Slots +1 (750,000 Knowledge)
- [Concordance Research](./concordance-research.md) - Inspiration skill requiring 500 Romanised and 500 Celtic Population (1,701 Knowledge)
- [Conservation Ordinance](./conservation-decree.md) - Water consumption -20% for Water-dependent Public Services
- [Cult of Cernunnos](./cult-of-cernunnos.md) - Unlocks Cernunnos deity focused on forests, Albionic production, and Health (32,000 Knowledge)
- [Cult of Epona](./cult-of-epona.md) - Unlocks Epona deity focused on animals and horses (180,000 Knowledge)
- [Cult of Mercury-Lugus](./cult-of-mercury-lugus.md) - Unlocks Mercury-Lugus deity focused on high-quality crafting and trade (32,000 Knowledge)
- [Cult of Minerva](./cult-of-minerva.md) - Unlocks Minerva deity focused on knowledge, teaching, and weaving (11,800 Knowledge)
- [Day Watch](./day-watch.md) - Custodes Happiness +1, Custodes provide even more Happiness to nearby buildings (64,000 Knowledge)
- [Devotional Research](./veneration-research.md) - Inspiration skill requiring 2 cities devoted to a single Patron (500 Knowledge)
- [Empyrean Research](./empyrean-research.md) - Inspiration skill requiring 25,000 Devotion for a Patron Deity (9,000 Knowledge)
- [Epona's Hoofbeat](./eponas-hoofbeat.md) - Equitum Campus gains Belief area effect +2 (360,000 Knowledge)
- [Fabulae Togatae](./fabulae-togatae.md) - Theatre effect range -20%, increasing coverage area (220,000 Knowledge)
- [Fenixwrights](./phoenix-from-ashes.md) - Vigiles rebuild time -50%, fire-fighting squads rebuild ruined buildings more quickly
- [Funeral Games of Tailteann](./games-of-tailteann.md) - Recreation Ground effect range +20% (32,000 Knowledge)
- [Generous Hospitality](./generous-hospitality.md) - Officium Permit +1, allows building one more Officium on your islands (64,000 Knowledge)
- [Hazard Fighters](./hazard-prevention.md) - Vigiles Fire Safety area effect +1 (92,000 Knowledge)
- [Headhunting](./recruitment.md) - Unlocks ability to appoint rival governors as specialists (750,000 Knowledge)
- [Hippocratic Corps](./hippocratic-corps.md) - Medici Available patrols +1, increases disease-fighting teams (36,000 Knowledge)
- [Hospitality](./hospitality.md) - Unlocks Officia specialist building and grants Officium Permit (11,800 Knowledge)
- [Imperial Parades](./imperial-parades.md) - Barracks gain Prestige area effect +2 (5,900 Knowledge)
- [Inventive Spirit (Artificer Intelligence)](./inventive-spirit.md) - Siege Workshop Knowledge area effect +2 (5,900 Knowledge)
- [Large Loans](./large-loans.md) - Allows you to take out a large loan with a Rival (92,000 Knowledge)
- [Latrines](./latrines.md) - Unlocks Latrines amenity, increases Health nearby (18,000 Knowledge)
- [Legally Enshrined](./shrines-allowed.md) - Shrine Permit +1, allows building one more Shrine on your Islands (36,000 Knowledge)
- [Lingua Romana](./lingua-romana.md) - Grammaticus effect range +20% on all islands (32,000 Knowledge)
- [Marble Roads](./marble-roads.md) - Unlocks Marble Road ornamental road for Prestige and faster goods transport (? Knowledge)
- [Market Forces](./attractive-markets.md) - Effect range of Markets +25% on all islands (4,800 Knowledge)
- [Metropolitan Research](./metropolitan-research.md) - Inspiration skill unlocked by reaching 25,000 Global Population (17,000 Knowledge)
- [Municipal Research](./urban-research.md) - Inspiration skill unlocked by reaching Growing City status (500 Knowledge)
- [Night Watch](./night-watch.md) - Custodes available patrols +1, increases riot-fighting squads patrolling the streets (8,000 Knowledge)
- [Pax Amicitia](./pax-amicitia.md) - Unlocks Master Negotiator, adds a Positive Reason for multiple diplomatic actions (750,000 Knowledge)
- [Portitores](./portitores.md) - Warehouses workforce needed -20%, upkeep cost -10% (11,800 Knowledge)
- [Populist Research](./peoples-research.md) - Inspiration skill unlocking Civic research paths (2,070 Knowledge)
- [Praetorian Pumps](./praetorian-pumps.md) - Vigiles response time -20%, fire-fighting squads extinguish burning buildings more quickly (220,000 Knowledge)
- [Praetorian Research](./praetorian-research.md) - Inspiration skill requiring 50,000 Global Prestige (9,000 Knowledge)
- [Public Funding](./public-funding.md) - City Watch effect range +20%, response range +20% (? Knowledge)
- [Quinquiremes](./quinquereme.md) - Unlocks an advanced hull type with many more slots and modifications (Unknown Knowledge)
- [Right to Repair](./right-to-repair.md) - Vigiles can repair ruined buildings (360,000 Knowledge)
- [Sanitary Measures](./sanitary-measures.md) - Medici Health area effect +1, improving health coverage to nearby buildings (92,000 Knowledge)
- [Shrine Staffing](./divine-shrines.md) - Shrine Permit +1 (Repeatable Research, 1.5M Knowledge)
- [Snuffing Sedition](./snuffing-sedition.md) - Custodes response time -20%, riot-fighting squads disperse rioters more quickly (220,000 Knowledge)
- [Solutio Ad Hominem](./solutio-ad-hominem.md) - Reveals the preference of Legendary Specialists and Captains (? Knowledge)
- [Trireme](./trireme.md) - Unlocks Trireme hull, a tried-and-true ship with more slots for modifications (36,000 Knowledge)
- [Via Tributum](./via-tributum.md) - Halves construction costs for Paved Roads and Marble Roads (750,000 Knowledge)
- [Warmer Hospitality](./warmer-hospitality.md) - Officium Permit +1, allows building one more Officium on your islands (360,000 Knowledge)
- [Watchtowers](./watchtowers.md) - Unlocks Watchtowers amenity, increases Happiness nearby (8,000 Knowledge)
- [Well](./wells.md) - Unlocks Well amenity, increases Fire Safety nearby (8,000 Knowledge)

### Military

- [Aegis Research](./aegis-research.md) - Inspiration skill unlocked by building 1,000 wall segments (17,000 Knowledge)
- [Another Brick In The Wall](./another-brick-in-the-wall.md) - Walls hitpoints +5% (Repeatable Research)
- [Armoursmithing](./armoursmithing.md) - Unlocks Armour Chain production (8,000 Knowledge)
- [Aux In, Aux Out](./aux-in-aux-out.md) - Garrison Auxilia Available +1, allows more Garrison Auxilia in Villas (180,000 Knowledge)
- [Axe-Bearers](./axe-bearers.md) - Unlocks Axe-Bearers melee unit (4,000 Knowledge)
- [Balearic Ballistics](./balearic-ballistics.md) - Improves Slinger stats (Accuracy +10%, Ranged offence +1) (92,000 Knowledge)
- [Bargain Palisades](./bargain-palisades.md) - Halves construction costs for wooden Walls and wooden Gates (110,000 Knowledge)
- [Brick By Brick](./brick-by-brick.md) - Halves construction costs for Stone Walls and Stone Gates
- [Camp Campaigning](./camp-campaigning.md) - Encampments gain +1 Happiness, +1 Fire Safety, +1 Prestige area effects
- [Carpe Civitas](./carpe-civitas.md) - Infantry torching speed +50% (8,000 Knowledge)
- [Catapult Carriers](./catapult-carriers.md) - Unlocks Ship Catapults module for high-range naval combat (110,000 Knowledge)
- [Cataphractarii](./cataphractarii.md) - Improves Cavalry stats (Armour Protection +1, 180,000 Knowledge)
- [Cautious Greeting](./cautious-greeting.md) - Allows the placement of Towers in water (64,000 Knowledge)
- [Chariots](./chariots.md) - Unlocks the Chariot military unit (180,000 Knowledge)
- [Co-ordinated Volleys](./co-ordinated-volleys.md) - Towers attack speed +10% (11,800 Knowledge)
- [Cover Positions](./cover-positions.md) - Improves Archer stats (Morale +50, Toughness +1) (36,000 Knowledge)
- [Dominion Research](./dominion-research.md) - Inspiration type, requires conquering 1 island and 9,000 Knowledge
- [Dominion Research II](./dominion-research-2.md) - Inspiration type, requires conquering 1 island and 9,000 Knowledge
- [Encampment Errands](./encampment-errands.md) - Troop maintenance cost while encamped -30% (375,000 Knowledge)
- [Equicurrian Chariots](./equicurrian-chariots.md) - Enhances Chariot troops with +25% attack range, +1 ranged offence, +10% movement speed
- [Imperial Measures](./imperial-measures.md) - +100% ship construction speed for Shipyards
- [Legatic Research](./legatic-research.md) - Inspiration skill requiring 5 Troops and 1,800 Knowledge
- [Legionaries](./legionaries.md) - Unlocks Legionaries military unit (36,000 Knowledge)
- [Legionic Research](./legionic-research.md) - Inspiration skill requiring a Barracks and 500 Knowledge
- [Manipular Manouvres](./manipular-manouvres.md) - Improves Legionary stats (Morale +100, Toughness +1, Shield Protection +1) (375,000 Knowledge)
- [Manor Invictus](./manor-invictus.md) - Governor Villa attack range +10%, ranged offence +1, attack speed +25% (180,000 Knowledge)
- [Multi-task Menders](./multi-task-menders.md) - Repair Crane simultaneous repairs +1 (110,000 Knowledge)
- [Nautical Research](./nautical-research.md) - Inspiration skill requiring a Shipyard and 500 Knowledge
- [Navarchal Research](./navarchal-research.md) - Inspiration skill unlocking naval research paths (sink 10 Raider ships, 2,205 Knowledge)
- [Ordine Research](./ordine-research.md) - Inspiration skill requiring 9,000 Knowledge and defeating a Raider
- [Parabolics](./parabolics.md) - Improves Onager stats (Accuracy +15%, Attack speed +5%) (64,000 Knowledge)
- [Parmae](./parmae.md) - Improves Equites Cavalry stats (Morale +25, Shield Protection +1) (64,000 Knowledge)
- [Perilous Ports](./perilous-ports.md) - Trading Posts gain +5 ranged offence, +25% attack speed, +50% hitpoints (180,000 Knowledge)
- [Plated Hulls](./plated-hulls.md) - Unlocks armoured plating ship module for improved hull durability
- [Praetorians](./praetorians.md) - Unlocks Praetorian Cavalry unit (375,000 Knowledge)
- [Pro Domo](./pro-domo.md) - Governor Villa hitpoints +50%, self-repair speed +100% (180,000 Knowledge)
- [Provisional Castra](./provisional-castra.md) - Unlocks Encampment, grants troops Encamp command for reduced workforce and faster healing (4,800 Knowledge)
- [Protective Entourage](./protective-entourage.md) - Improves Auxilia stats (Morale +75, Toughness +1) (8,000 Knowledge)
- [Rain Of Pain](./rain-of-pain.md) - Unlocks Garrison Archers for defending your island (375,000 Knowledge)
- [Rammed Earth](./rammed-earth.md) - Wall Upkeep -30% across all islands (8,000 Knowledge)
- [Repair Cranes](./repair-cranes.md) - Unlocks Repair Crane building that repairs nearby ships
- [Shipboard Scorpiones](./shipboard-scorpiones.md) - Unlocks Shipboard Scorpiones module for medium-ranged naval combat (64,000 Knowledge)
- [Shipwright Studies](./shipwright-studies.md) - Repair Crane ship repair speed +25%, repair radius +20%
- [Scorpiones](./scorpiones.md) - Unlocks Scorpiones siege engine for anti-formation attacks (32,000 Knowledge)
- [Slingers](./slingers.md) - Unlocks the Slingers military unit (4,800 Knowledge)
- [Spathas](./spathas.md) - Improves Praetorian Cavalry stats (Morale +50, Melee offence +1, Charge offence +4)
- [Stone Walls](./stone-walls.md) - Unlocks Stone Walls, Stone Gates, and Stone Towers defensive buildings (18,000 Knowledge)
- [Sturdy Construction](./sturdy-construction.md) - +5% Hitpoints for Towers and Gates (Repeatable Research, 1.5M Knowledge)
- [Sword and Sald (Brave Hearts)](./brave-hearts.md) - Repeatable Research, yields random Legendary Specialist in Military, Seafaring, or Civics
- [Tacking](./tacking.md) - Ships gain +5% movement speed and -20% unfavourable wind impact (36,000 Knowledge)
- [Target Practice](./target-practice.md) - Unlocks Garrison Archers, +1 Garrison Archers Available (92,000 Knowledge)
- [Tower Ballistae](./tower-ballistae.md) - Unlocks Tower Ballistae defensive building (46,000 Knowledge)
- [Tuatha De Danann](./tuatha-de-danann.md) - Improves Axe-Bearer stats (Morale +100, Toughness +1, Melee offence +1) (180,000 Knowledge)
- [Valetudinaria](./valetudinaria.md) - Troops healing while encamped +100% (64,000 Knowledge)
- [Vitruvius-class Crossbeams](./vitruvius-class-crossbeams.md) - Scorpiones attack range +15%, attack speed +10% (180,000 Knowledge)

### Economy

- [Albionic Loyalists](./albionic-loyalists.md) - Governor Villa: Wader Workforce +25 in Albion (32,000 Knowledge)
- [Albionic Pillars](./albionic-pillars.md) - Governor Villa provides +25 Smiths and +25 Mercators Workforce in Albion (750,000 Knowledge)
- [Albionic Research](./albionic-research.md) - Inspiration skill requiring a Trade Route in Albion and 500 Knowledge
- [Aqua Arborica](./aqua-arborica.md) - Allows all plantations to benefit from irrigation via aqueducts (32,000 Knowledge)
- [Beaver Bother](./beaver-bother.md) - Beaver Trapper productivity +25%, can use forests and meadows (750,000 Knowledge)
- [Blind Faith](./blind-obedience.md) - Governor Villa: Plebeian Workforce +50 in Latium (128,000 Knowledge)
- [Blood of Terra](./blood-of-terra.md) - Allows Iron Mines to produce without Iron Deposits at 50% productivity (46,000 Knowledge)
- [Cyclopedic Research](./encyclopedic-research.md) - Inspiration skill requiring 5 Inter-regional Trade Routes (17,000 Knowledge)
- [Deep Depots](./depths-of-warehouse.md) - Depot Permit +1, allows building one more Depot on your islands (Repeatable Research, 1.5M Knowledge)
- [Depots](./depots.md) - Unlocks Depot harbour building, increases island storage capacity (4,800 Knowledge)
- [Depotism](./depotism.md) - Depot Permit +1, allows building one more Depot on your islands (220,000 Knowledge)
- [Drainage](./drainage.md) - Unlocks Drainage Channel and Sluice Gate to drain marshes in Albion (32,000 Knowledge)
- [Duct Irrigation](./duct-irrigation.md) - Allows all farms to benefit from cistern irrigation, increasing productivity (64,000 Knowledge)
- [Extra Horse Power](./additional-horsepower.md) - Governor Villa Equites Workforce +50 in Latium (Unknown Knowledge)
- [Firmer Foundations](./firmer-foundations.md) - Allows the placement of Harbour Buildings in water (360,000 Knowledge)
- [Fish Markets](./fish-markets.md) - Fishing Hut and Cockle Picker gain Income area effect +3 (11,800 Knowledge)
- [Gobannus-Model Bellows](./bellows-of-gobannus.md) - Fuel efficiency +30% for Coal-dependent Buildings (750,000 Knowledge)
- [Great Seaport City](./great-seaport-city.md) - Allows placement of buildings even further away from the coast (750,000 Knowledge)
- [Harbour Grandmastery](./seaport-city.md) - Increased offshore building range, allows placement further from coast (360,000 Knowledge)
- [Harbourmastery](./harbourmastery.md) - Allows placement of Albion's Coastal Production Buildings in water (18,000 Knowledge)
- [Healthy Competition](./healthy-competition.md) - Repeatable Research, grants random Legendary Specialist (Economy/Finance/Nature) (1,500,000 Knowledge)
- [Honeyed Arbour](./honeyed-arbour.md) - Apiaries productivity +25%, can use forests without productivity loss (750,000 Knowledge)
- [Hurried Horrea](./hasty-horrea.md) - Warehouse loading speed +25% for all Warehouses (92,000 Knowledge)
- [Hushing](./hushing.md) - Aqueduct Boost: Mines, allows all mines to benefit from hydraulics via aqueducts (46,000 Knowledge)
- [Latin Research](./latin-research.md) - Inspiration skill requiring a Trade Route in Latium (500 Knowledge)
- [Mackerel Hauling](./mackerel-fishing.md) - Allows Scomber's Huts to produce without Mackerel Population at 50% productivity (64,000 Knowledge)
- [Marsh Services](./marsh-services.md) - Allows placement of City Watch buildings in marshlands (32,000 Knowledge)
- [Metallurgical Research](./metallurgical-research.md) - Inspiration skill requiring 12 Mines in Albion (9,000 Knowledge)
- [Monumental Research](./monumental-research.md) - Inspiration skill unlocked by building 5 Aqueducts in Latium (9,000 Knowledge)
- [Paved Roads](./paved-roads.md) - Unlocks Paved Roads for faster goods transport (4,000 Knowledge)
- [Pier-to-Pier Trading](./pier-to-pier-trading.md) - Unlocks Trading Pier harbour building, reduces congestion at Trading Post (220,000 Knowledge)
- [Phlogistic Research](./phlogistic-research.md) - Inspiration skill unlocked by storing 150t Charcoal in Latium (1,503 Knowledge)
- [Quays](./quay-walls.md) - Unlocks Quay Street ground patterns for harbour decoration (Unknown Knowledge)
- [Raising Sluices](./raising-sluices.md) - Sluice Gate Drainage Channels +80, allows more connections per gate (750,000 Knowledge)
- [Replanting](./replanting.md) - Charcoal Burners can use meadows instead of requiring forests (4,000 Knowledge)
- [Reservoirs](./reservoirs.md) - Aqueduct Basins water supply +50% (64,000 Knowledge)
- [Safe Havens](./seaport-of-latium.md) - Allows the placement of Latium's Coastal Production Buildings in water (36,000 Knowledge)
- [Sewing Circles](./sewing-circles.md) - Spinners gain Knowledge area effect +1 (8,000 Knowledge)
- [The Flight of Birds](./flight-of-birds.md) - Bird Charmer productivity +25%, can use forests and meadows (750,000 Knowledge)
- [Trading Post Improvements](./trading-post-improvements.md) - Unlocks Trading Post Upgrade, adds loading ramps and increases island storage (4,800 Knowledge)
- [Ulex & Agogae](./ulex-agogae.md) - Allows Gold Mines and Gold Washers to produce without Gold Deposits at 50% productivity (Unknown Knowledge)
- [Untapped Soil](./afforestation.md) - Tree Tappers can plant trees on meadows rather than requiring a forest (64,000 Knowledge)
- [Villa Retinue](./servants.md) - Governor Villa provides +25 Liberti Workforce in Latium (36,000 Knowledge)
- [Vino Veritas](./vino-veritas.md) - Allows Vineyards to produce without Grape Fertility at 50% productivity (750,000 Knowledge)
- [Warehouse Organisation](./warehouse-organisation.md) - Unlocks Warehouse Upgrade, adds loading ramps to avoid congestion (4,800 Knowledge)
- [Warehouse Refinement](./warehouse-improvement.md) - Unlocks Warehouse Upgrade, adds loading ramps to avoid congestion (750,000 Knowledge)
- [Water Conservation](./water-conservation.md) - Water consumption -20% for Water-improved Production Buildings (92,000 Knowledge)
- [Wetland Research](./wetland-research.md) - Inspiration skill requiring draining 7,500 tiles of Marshland (1,602 Knowledge)
- [Well-Ordered Warehouses](./well-sorted-warehouses.md) - Halves construction costs for all Warehouses (750,000 Knowledge)
- [Beneath Bedrock](./beneath-bedrock.md) - Mines Productivity +5% (Repeatable Research, 1.5M Knowledge)
- [Better Bellows](./better-bellows.md) - Coal-dependent Buildings: Fuel efficiency +20% (4,000 Knowledge)
- [Woodland Rebirth](./woodland-rebirth.md) - Woodcutters can plant trees on meadows (18,000 Knowledge)
