
Massive siege engine with incredible range, extra effective at destroying buildings and walls.
Produced by
Blacksmith
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.
Siege Works: New carpentry techniques increase the health of siege units by +20%.
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.
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.
Geometry: Increase damage of Trebuchets by +20%.
Geometry (Improved): Increase damage of Trebuchets by +30%. If Geometry has already been researched, increase their damage by +10% instead.