Kingdom of Mercia technologies
The civil and military research trees of Kingdom of Mercia (Western Germanic, Age of Charlemagne), line by line as the game lays them out. Hover or tap a technology for its research points, gold per turn, effects, the buildings it unlocks and what it needs first. Kingdom of Mercia units.
COMPUTEDBoth trees together cost 44,200 research points. Each tooltip also shows what reaching that technology costs: its own points plus every technology it needs first, each counted once. Before research-rate bonuses.
Civil technologies (24)
Water PowerWater Power600 research points · 1,200 research points to reach it (cheapest route)Requires: King's DecreesThe elements may be harnessed for man's best advantage.
Irrigation TechniquesIrrigation Techniques900 research points · 2,700 research points to reach it (cheapest route)Requires: WitanBy which water is channelled to where it may be of most use.
ShiresShires1,000 research points · 5,500 research points to reach it (cheapest route)Requires: Irrigation Techniques, Land GrantsThe land is divided, so that the king's burdens may be eased.
SpoliaSpolia1,200 research points · 5,800 research points to reach it (cheapest route)
Wealth: +10% from commercial buildingsRequires: CoinageEverything has its uses, even the old and decrepit.
Trade GoodsTrade Goods500 research points · 1,100 research points to reach it (cheapest route)Requires: King's Decrees"Any excess is offered for sale, so we may buy what we do not have."
Court SchoolCourt School800 research points · 2,600 research points to reach it (cheapest route)
Wealth: +30% from cultural buildingsRequires: WitanEducation for the sons of noblemen guarantees the future of the realm.
CoinageCoinage1,000 research points · 4,600 research points to reach it (cheapest route)Requires: Land Grants"I know, I'll give you these beans - how's that sound? No?"
Single CurrencySingle Currency1,200 research points · 5,800 research points to reach it (cheapest route)Requires: CoinageOne king, one coin, one value clearly defined.
Court ScholarsCourt Scholars200 research pointsTo these men are charged a most noble responsibility.
King's DecreesKing's Decrees400 research points · 600 research points to reach it (cheapest route)
Public order: +2 from bureaucratic reformsRequires: Court Scholars"Fond of your head? Then you'll do as you are told."
WitanWitan700 research points · 1,800 research points to reach it (cheapest route)
Imperium: +20 Imperium pointsRequires: Illuminated Manuscripts, King's DecreesWhere the most important, and therefore the wisest, meet to advise the king.
Land GrantsLand Grants900 research points · 3,600 research points to reach it (cheapest route)Imperium: +25 Imperium pointsRequires: Judicial Power, WitanA field to fight, another to live.
Church ScholarsChurch Scholars1,200 research points · 4,800 research points to reach it (cheapest route)Imperium: +30 Imperium pointsRequires: Land GrantsWhen the future threatens the natural order, knowledge of the past is key.
FeudalismFeudalism1,800 research points · 13,800 research points to reach it (cheapest route)
Loyalty: +2Public order: +2 from bureaucratic reformsImperium: +35 Imperium pointsRequires: Church Music, Church Scholars, Law Code, Single Currency, SpoliaThe loyal warrior is granted land in return for his continued service.
Illuminated ManuscriptsIlluminated Manuscripts500 research points · 1,100 research points to reach it (cheapest route)Requires: King's DecreesWhere the script itself is a work of art, and therefore better placed to impart its message.
Judicial PowerJudicial Power900 research points · 2,700 research points to reach it (cheapest route)Requires: WitanAll must respect the law and the judgement of the king's advocates.
Trade HubsTrade Hubs1,000 research points · 4,600 research points to reach it (cheapest route)Requires: Land GrantsA place to congregate, to trade, to prosper.
Trade RightsTrade Rights1,000 research points · 5,600 research points to reach it (cheapest route)Requires: Trade Hubs"This land is ours. It follows that a share of that which passes through it is ours also."
Law CodeLaw Code1,300 research points · 6,100 research points to reach it (cheapest route)Requires: Church ScholarsThe laws of the land, in the common tongue so that none may dispute their meaning.
Insular ArtInsular Art600 research points · 1,200 research points to reach it (cheapest route)Wealth: +10% from industrial buildingsRequires: King's DecreesRelative isolation has enabled a unique style to emerge.
MonasticismMonasticism800 research points · 2,600 research points to reach it (cheapest route)Requires: WitanEarthly pursuits abandoned in favour of devotion to the wholly spiritual.
Church CareChurch Care1,000 research points · 5,400 research points to reach it (cheapest route)Requires: Land Grants, MonasticismIt follows that those who care for the spirit may look after the body also.
ChroniclesChronicles1,200 research points · 6,000 research points to reach it (cheapest route)Requires: Church ScholarsLet what has happened be written down, so that others may learn from it.
Church MusicChurch Music1,300 research points · 7,300 research points to reach it (cheapest route)
Religious influence: +4 state religionRequires: ChroniclesMusic brings man closer to his creator.
Military technologies (24)
MilitiaMilitia600 research points · 1,200 research points to reach it (cheapest route)Requires: LogisticsIn the war to come everyone must fight, be he farmer, baker or mason.
Improved Siege EnginesImproved Siege Engines800 research points · 2,700 research points to reach it (cheapest route)
Enables construction of medium siege enginesRequires: Call on Vassals, MilitiaCities are larger, walls are higher. It follows that the means of their destruction must be also.
Siege TechniquesSiege Techniques900 research points · 3,600 research points to reach it (cheapest route)Requires: Improved Siege EnginesThink outside the box if you wish to break into it.
Defence in DepthDefence in Depth1,000 research points · 4,600 research points to reach it (cheapest route)
Attrition: -30% when under siege (all forces)
Siege holdout time: +1 (double for city-ports)Requires: Siege TechniquesIn order to take ground, you must first give it.
Siege StoresSiege Stores1,000 research points · 5,600 research points to reach it (cheapest route)Ammunition: +25% during siege defence battlesRequires: Defence in DepthTake advantage of the calm, before the storm comes down.
Siege MastersSiege Masters1,200 research points · 6,800 research points to reach it (cheapest route)Enables construction of heavy siege enginesRequires: Siege StoresIt takes more than superior numbers to force a surrender.
BurhsBurhs1,300 research points · 8,100 research points to reach it (cheapest route)Requires: Siege Masters"A line of forts, to confound the perfidious raiders who plague our shores."
ConquerorsConquerors600 research points · 1,200 research points to reach it (cheapest route)
Raiding income: +20%Requires: LogisticsIt's a short leap from conqueror to deity.
Warrior CultureWarrior Culture1,000 research points · 3,200 research points to reach it (cheapest route)Requires: Select FyrdHeroism is all. Nothing else is of any consequence.
Horse BreedingHorse Breeding1,300 research points · 4,700 research points to reach it (cheapest route)
Unit experience: +1 for cavalry unit recruitsRequires: Warrior AristocracyBeasts for work, for sport, or for war - all can be bred according to need.
Fyrd LevyFyrd Levy200 research points"The shires will be defended, make no mistake."
LogisticsLogistics400 research points · 600 research points to reach it (cheapest route)Replenishment: +3%Requires: Fyrd LevyVictory in the field and in the balance books.
Call on VassalsCall on Vassals700 research points · 1,300 research points to reach it (cheapest route)
Recruitment capacity: +1Imperium: +20 Imperium pointsRequires: LogisticsWhen the king calls, his vassals must answer. It is a matter of honour.
Select FyrdSelect Fyrd900 research points · 2,200 research points to reach it (cheapest route)Imperium: +25 Imperium pointsRequires: Call on VassalsAlthough they'll never be huscarls, the fyrd can hold the line well enough.
Warrior AristocracyWarrior Aristocracy1,200 research points · 3,400 research points to reach it (cheapest route)Imperium: +30 Imperium pointsRequires: Select FyrdThe strength to lead is granted to few men.
Professional SoldiersProfessional Soldiers1,800 research points · 15,800 research points to reach it (cheapest route)
Integrity: +2Recruitment cost: -15%
Upkeep cost: -10% for all unitsImperium: +35 Imperium pointsRequires: Battlefield Surgery, Burhs, Horse Breeding, Warrior Aristocracy"Survive this battle, and next time, you will stand in the second rank."
Long MarchesLong Marches500 research points · 1,100 research points to reach it (cheapest route)
Fatigue rate: -20%Requires: LogisticsThrough which stamina is developed - vital when facing the enemy.
Campaign PlanningCampaign Planning600 research points · 1,700 research points to reach it (cheapest route)
Campaign movement range: +20%Requires: Long MarchesThough no plan survives contact with the enemy, not having one courts disaster from the start.
Master SmithsMaster Smiths900 research points · 2,200 research points to reach it (cheapest route)Requires: Call on VassalsMetal is like butter in the hands of a master.
Wooden WallWooden Wall1,000 research points · 3,200 research points to reach it (cheapest route)
Recruitment cost: -10% for naval unitsRequires: Select FyrdProved effective against smaller armies, but of little use during a protracted siege.
Planned MovementPlanned Movement1,200 research points · 4,600 research points to reach it (cheapest route)Battle movement speed: +10%Requires: Warrior AristocracyEverything - everything - is considered, right down to the moment of contact, the clash of steel.
Battlefield SurgeryBattlefield Surgery1,300 research points · 5,900 research points to reach it (cheapest route)Replenishment: +5%Requires: Planned Movement"That leg will have to come off if you want to live - now, hold him down!"
Fyrd TrainingFyrd Training800 research points · 2,100 research points to reach it (cheapest route)Unit experience: +1 for infantry unit recruitsRequires: Call on Vassals"Not at all bad for a part-timer. Again, watch me - like this!"
Ranged WarfareRanged Warfare1,000 research points · 3,200 research points to reach it (cheapest route)
Ammunition: +25%Requires: Select FyrdIf you can look a man in the eye, you're close enough to kill him.
From technology_node_sets, technology_nodes (with this faction's own nodes in place of the shared ones), technology_node_links, technology_effects_junction and building_level_required_technology_junctions (Steam build 25370302).