革新

炼铁

iron_workingin_game/common/advances/0_age_of_traditions.txt:345

铁是制造各类工具和武器的关键材料。它不仅成为每个村庄中铁匠交易的核心物资，更是大型制造产业链中不可或缺的重要元素。

需要

冶金革新requires

封建制度思潮allow

革新树

修正

启用煤炭原产是
启用铁矿原产是

定义in_game/common/advances/0_age_of_traditions.txt:345

346icon = efficient_mining

347age = age_1_traditions

348requires = metallurgy

349research_cost = 2.0

350starting_technology_level = 1

352allow = {

353has_embraced_institution = institution:feudalism

}

356can_extract_coal = yes

357can_extract_iron = yes

358unlock_building = bog_iron_smelter