Engineering Experts

Level 1

Enables construction of medium siege engines
-2% construction costs

Level 2

Enables construction of medium siege engines
-4% construction costs
+6% armour for all siege units

Level 3

Enables construction of heavy siege engines
Enables construction of medium siege engines
-6% construction costs
+12% armour for all siege units
Description

When men move the earth itself, are they not like gods?