Weapon research

Three stages per troop type, researched in each castle separately: fixed bonuses to attack, siege and defence. In the game it is called Basic research.

Every troop type has three stages of weapon research. In the Laboratory they are listed under “Basic research”, for Templar and Paladin under “Clandestine research”. Each stage gives every unit of that type in the castle a fixed bonus. For most troop types the key values rise by a good half over all three stages – a big step for comparatively few resources.

Requirements

Each stage requires the previous one plus certain levels of the recruiting building and of the Laboratory; for Archers and Templar you also need a Wall. The table below shows all requirements at a glance. You will find the costs and research times on the page of each troop.

Things to keep in mind

Research applies per castle: if you research axemen in castle A, the axemen in castle B fight without that bonus.
Research the troops you actually use in that castle first. A pure defence castle only needs the cavalry research once it is supposed to unlock special research.
Special research only opens up once all regular weapon research of a castle is at stage 3 – templars and paladins excepted. For that you need at least Laboratory 10, Barracks 13, Stables 15, Catapult workshop 13 and Wall 13.
You pay for the weapon research of the Amber Knight with amber instead of resources; it only appears in castles that can recruit amber knights.

Troop	Stage	Research	Bonus per stage	Requirements
Light infantry	1	Long lance	+3 attack, +2 defence	Barracks 1, Laboratory 1
	2	Improved wooden grip	+3 attack, +2 defence	Barracks 5, Laboratory 5
	3	Steel lance	+3 attack, +2 defence	Barracks 10, Laboratory 10
Swordsmen	1	Bronze sword	+4 attack, +6 defence	Barracks 2, Laboratory 1
	2	Forged steel sword	+4 attack, +6 defence	Barracks 7, Laboratory 5
	3	Stainless steel sword	+4 attack, +6 defence	Barracks 12, Laboratory 10
Axemen	1	Light metal grip	+15 attack, +2 defence	Barracks 3, Laboratory 1
	2	Double axe	+15 attack, +2 defence	Barracks 8, Laboratory 5
	3	Hardened double axe	+15 attack, +2 defence	Barracks 13, Laboratory 10
Spies	1	Spy training	+4 attack, +1 defence	Stables 1, Laboratory 1
	2	Spy with telescope	+4 attack, +1 defence	Stables 5, Laboratory 5
	3	Camouflaged spy	+4 attack, +1 defence	Stables 10, Laboratory 10
Cavalry	1	Breeding horses	+26 attack, +20 defence	Stables 3, Laboratory 1
	2	Sword	+26 attack, +20 defence	Stables 8, Laboratory 5
	3	Shield	+26 attack, +20 defence	Stables 13, Laboratory 10
Armored cavalry	1	Armored cavalry	+30 attack, +40 defence	Stables 5, Laboratory 1
	2	Stainless steel sword	+30 attack, +40 defence	Stables 10, Laboratory 5
	3	Steel chain armor	+30 attack, +40 defence	Stables 15, Laboratory 10
Battering rams	1	Hardwood	+20 siege, +40 defence	Catapult workshop 1, Laboratory 1
	2	Ram head made of steel	+20 siege, +40 defence	Catapult workshop 5, Laboratory 5
	3	Double-sided grips	+20 siege, +40 defence	Catapult workshop 10, Laboratory 10
Catapults	1	Strengthened handgrips	+5 attack, +20 siege, +30 defence	Catapult workshop 3, Laboratory 1
	2	Double-braided rope	+5 attack, +20 siege, +30 defence	Catapult workshop 8, Laboratory 5
	3	Stronger spring mechanism	+5 attack, +20 siege, +30 defence	Catapult workshop 13, Laboratory 10
Archers	1	Training	+9 attack, +10 defence	Wall 3, Laboratory 1, Barracks 1
	2	Exotic wood arrows	+9 attack, +10 defence	Wall 8, Laboratory 5, Barracks 5
	3	Poisoned tips	+9 attack, +10 defence	Wall 13, Laboratory 10, Barracks 10
Templar	1	Binding oath	+7 attack, +16 defence	Wall 10, Laboratory 15, Barracks 25
	2	Meditation	+7 attack, +16 defence	Wall 17, Laboratory 22, Barracks 34
	3	Blessing	+7 attack, +16 defence	Wall 24, Laboratory 29, Barracks 43
Paladin	1	Codex	+24 attack, +20 defence	Stables 35, Laboratory 15
	2	Gold armor	+24 attack, +20 defence	Stables 43, Laboratory 19
	3	Baldur's armory	+24 attack, +20 defence	Stables 52, Laboratory 27
Amber Knight	1	Amber Plating	+10 attack, +3 siege, +200 defence	Barracks 25, Laboratory 30
	2	Petrified Blades	+10 attack, +3 siege, +200 defence	Barracks 30, Laboratory 40
	3	Order of Amber	+10 attack, +3 siege, +200 defence	Barracks 35, Laboratory 50

Weapon research

Requirements

Things to keep in mind

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