
Available for 22 civilizations
Produces naval units. Automatically repairs nearby damaged naval units. Capable of holding up to three Fishing Ships.
Blacksmith
Melee Damage Technology
Increase the melee damage of all non-siege units by +1.
Melee Armor Technology
Increase the melee armor of all non-siege units by +1.
Ranged Armor Technology
Increase the ranged armor of all non-siege units by +1.
Ranged Damage Technology
Increase the ranged damage of all arrows, bolts, and emplacements by +1.
Military Academy: Increase the production speed of infantry, cavalry, siege, and transport units at buildings by 33%. Does not affect religious units or other support units.
Elzbach Palace
Slate and Stone Construction: All buildings gain +5 fire armor.
House of Learning
Elephant Caretakers: Elephants regenerate +2 health every 2 seconds when out of combat.
House of Wisdom
Fertile Crescent: Reduce the cost of Economy buildings and Houses by 30%.
Madrasa
Court Architects: Patronage of the finest builders increases all building health by +30%.
Monastery
Devoutness: Inspired Villagers gather resources +5% faster and construct buildings and defenses +25% quicker.
Outpost
Yam Network: Yam speed aura applies to all units instead of just Traders and cavalry units. Does not apply to siege engines.
Shinto Shrine
Gion Festival: Increases the Line of Sight of all buildings by +2 tiles. Every 3 minutes, all economic units heal for 100% of their health over 3 seconds.
Siege Workshop
Greased Axles: Increase the movement speed of siege engines by +15%.
Greased Axles (Improved): Increase the movement speed of siege engines by +25%. If Greased Axles has already been researched, increase it by +10% instead.
Varangian Arsenal
Ranged Technology
Military Academy (Improved): Increase the production speed of military and transport units at buildings by 53%. Does not affect religious or other support units. If Military Academy has already been researched, increase production speed by 20% instead.
Siege Works (Improved): New carpentry techniques increase the health of siege engines by +30%. If Siege Works has already been researched, increase their health by +10% instead.
Biology: Investing in natural sciences increases the health of all cavalry by +25%.
Siege Works: New carpentry techniques increase the health of siege units by +20%.
Increase the ranged damage of all arrows and bolts by +1.