Killing fields

A killing field, in military science, is an area in front of a defensive position that the enemy must cross during an assault and is specifically intended to allow the defending troops to incapacitate a large number of the enemy.

Name	Costs
Killing fields	1300 1400 1300 1400 800	0	03d04h40m

Ability
Provides	Requires
Killing Fields improvement Killing Fields improvement to city	Building is any Castle User has Trapping technology

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

Killing fields techtree