See https://forums.planetaryannihilatio...y-misc-unit-balance.73325/page-2#post-1150283 The metal cost hasn't been changed, change this line (7) if you'd like to set a new cost: "build_metal_cost": 1500, The metal output is based on this line (17): "production": { "metal": 14 }, Code is here: https://github.com/grandhomie/com.pa.grandhomie.metalbalance
