Caltrop

A caltrop is an antipersonnel weapon made up of two or more sharp nails or spines arranged in such a manner that one of them always points upward from a stable base.

Name	Costs
Caltrop	1100 1000 1200 1400	0	02d18h40m

Ability
Provides	Requires
Caltrop improvement Caltrop improvement to city	Building is Large Castle or Royal Castle User has Trapping technology

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

Caltrop techtree