
Powerful siege engine effective at destroying buildings and walls over a long distance.
Produced by
Repairs nearby siege engines for 2 health every second.
Within 4.5 tiles of Machine Workshop
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.
Machine Workshop
Lightweight Frames: Increase the movement speed of siege engines by +10%.
Reinforced Axles: Further increase the movement speed of siege engines by another +10%.
Geometry: Increase damage of Trebuchets by +20%.
Pili Pao: Explosive Grenades hurled by Trebuchets and Nest of Bees smoke out enemy defenders, reducing attacked building damage by 20% for 8 seconds. Trebuchets and Nest of Bees gain +1 range.
University
Siege Works: New carpentry techniques increase the health of siege units by +20%.