castle = {
	# Persian Cataphracts
	ca_culture_persian_1 = {
		desc = ca_culture_persian_1_desc
		potential = {
			FROM = {
				OR = {
				tier = king
				tier = emperor
				}
			}
			OR = {
					culture = persian
				has_building = ca_culture_persian_1
			}
			OR = {
				region = world_persia
				region = world_middle_east
			}
		}
		is_active_trigger = {
			ROOT = {
				culture = persian
			}
		}
		trigger = {
			TECH_CASTLE_CONSTRUCTION = 0 
			ROOT = {
				culture = persian
			}
		}
		prerequisites = { ca_wall_2 }
		gold_cost = 200
		build_time = 730
		knights = 10
		camel_cavalry = 10
		knights_offensive = 0.075
		camel_cavalry_offensive = 0.075
		ai_creation_factor = 101
		
		extra_tech_building_start = 0.8
	}
	ca_culture_persian_2 = {
		desc = ca_culture_persian_1_desc
		potential = {
			FROM = {
				OR = {
				tier = king
				tier = emperor
				}
			}
			OR = {
					culture = persian
				has_building = ca_culture_persian_1
				has_building = ca_culture_persian_2 
			}
			OR = {
				region = world_persia
				region = world_middle_east
			}
		}
		is_active_trigger = {
			ROOT = {
				culture = persian
			}
		}
		trigger = {
			TECH_CASTLE_CONSTRUCTION = 1
			ROOT = {
				culture = persian
			}
		}
		upgrades_from = ca_culture_persian_1
		gold_cost = 300
		build_time = 1095
		knights = 15
		camel_cavalry = 10
		knights_offensive = 0.075
		camel_cavalry_offensive = 0.075
		ai_creation_factor = 101
		
		extra_tech_building_start = 0.8
	}
	ca_culture_persian_3 = {
		desc = ca_culture_persian_1_desc
		potential = {
			FROM = {
				OR = {
				tier = king
				tier = emperor
				}
			}
			OR = {
					culture = persian
				has_building = ca_culture_persian_1
				has_building = ca_culture_persian_2
				has_building = ca_culture_persian_3
			}
			OR = {
				region = world_persia
				region = world_middle_east
			}
		}
		is_active_trigger = {
			ROOT = {
				culture = persian
			}
		}
		trigger = {
			TECH_CASTLE_CONSTRUCTION = 2
			ROOT = {
				culture = persian
			}
		}
		upgrades_from = ca_culture_persian_2
		gold_cost = 400
		build_time = 2190
		knights = 15
		camel_cavalry = 20
		knights_offensive = 0.075
		camel_cavalry_offensive = 0.075
		ai_creation_factor = 101
		
		extra_tech_building_start = 0.8
	}
	ca_culture_persian_4 = {
		desc = ca_culture_persian_1_desc
		potential = {
			FROM = {
				OR = {
				tier = king
				tier = emperor
				}
			}
			OR = {
					culture = persian
				has_building = ca_culture_persian_1
				has_building = ca_culture_persian_2
				has_building = ca_culture_persian_3
				has_building = ca_culture_persian_4
			}
			OR = {
				region = world_persia
				region = world_middle_east
			}
		}
		is_active_trigger = {
			ROOT = {
				culture = persian
			}
		}
		trigger = {
			TECH_CASTLE_CONSTRUCTION = 4
			ROOT = {
				culture = persian
			}
		}
		upgrades_from = ca_culture_persian_3
		gold_cost = 500
		build_time = 2190
		knights = 20
		camel_cavalry = 20
		knights_offensive = 0.075
		camel_cavalry_offensive = 0.075
		ai_creation_factor = 101
		
		extra_tech_building_start = 0.8
	}
}