Curtain wall

A curtain wall is the defensive wall surrounding the bailey of a medieval castle. It can also be a defensive wall between two bastions of a castle or fortress in post-medieval fortifications.

Name	Costs
Curtain wall	1300 1400 1300 1400 1400	0	04d04h00m

Ability
Provides	Requires
+15% Building hit point Curtain Wall improvement Curtain Wall improvement to city	Building is any Castle

Buildings to improve
Name	Construction Costs			Culture Points	Trade Points
Castle	500 600 500 550 1000	0	08d08h00m	10	4
Large Castle	4500 4250 4600 4250 4000	0	16d16h00m	50	25
Royal Castle	12500 12200 12500 12400 9000	0	02d08h00m	100	50

Curtain wall techtree