AoE3 DatabaseAoE3: DE 100.19.18309 · read from the game files · unofficial

Home City card

Siege Construction

Siege Construction (tech ID DEHCSiegeConstruction) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Fortress Age. Effect: Elite Ram: population −1, train time −30%; Light Cannon: population −1, train time −30%; Elite Mantlet: population −1, train time −30%.

Quick answers (3)
Which civilizations have the Siege Construction card?
Haudenosaunee.
What does Siege Construction do in AoE3?
Elite Ram: population −1, train time −30%; Light Cannon: population −1, train time −30%; Elite Mantlet: population −1, train time −30%. The game says: "All Siege Workshop troops train faster and cost less population. • Siege Workshop unit: Population cost -1"
What is the tech ID of Siege Construction?
DEHCSiegeConstruction.

All Siege Workshop troops train faster and cost less population. • Siege Workshop unit: Population cost -1

What it does

Cost
Shipment1
Sent from
III
Times it can be sent
1
Game ID
DEHCSiegeConstruction

In these decks

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).