Bloomery

II

Melee Damage Technology 1/3

Increase the melee damage of all non-siege units by +1.

50

125

60

Fitted Leatherwork

II

Melee Armor Technology 1/3

Increase the melee armor of all non-siege units by +1.

50

125

60

Iron Undermesh

II

Ranged Armor Technology 1/3

Increase the ranged armor of all non-siege units by +1.

50

125

60

Professional Scouts

II

Hunting Technology

Scouts gain the ability to carry animal carcasses and +100% damage against wild animals. Scouts move -55% slower while carrying and cannot pick up Boar. Deer slowly decay while being carried.

150

300

75

Decarbonization

III

Melee Damage Technology 2/3

Increase the melee damage of all non-siege units by +1.

100

250

60

Insulated Helm

III

Melee Armor Technology 2/3

Increase the melee armor of all non-siege units by +1.

100

250

60

Military Academy

III

Production Technology

Increase the production speed of infantry, cavalry, siege, and transport units at buildings by 33%. Does not affect religious units or other support units.

100

250

60

Wedge Rivets

III

Ranged Armor Technology 2/3

Increase the ranged armor of all non-siege units by +1.

100

250

60

Boyar's Fortitude

III

Cavalry Technology

[特有] Increase the health of Rus cavalry by +25.

150

350

60

Fervor

III

Religious Technology

[特有] Improve the range of Saint's Blessing by +5 tiles and the damage granted by Saint's Blessing by +1.

150

25

Angled Surfaces

IV

Ranged Armor Technology 3/3

Increase the ranged armor of all non-siege units by +1.

150

350

60

Biology

IV

Cavalry Technology

Investing in natural sciences increases the health of all cavalry by +25%.

500

1000

90

Damascus Steel

IV

Melee Damage Technology 3/3

Increase the melee damage of all non-siege units by +1.

150

350

60

Master Smiths

IV

Melee Armor Technology 3/3

Increase the melee armor of all non-siege units by +1.

150

350

60

Spyglass

IV

Scout Technology

Increase the sight radius of Scouts by 30%.

100

50

45