Mining Rank 4 Can Mine Bismuth Ore.
Name: +2 to Maximum Miners
Can Mine Bismuth.
Upgrade cost: 700 Gold + 5 Crimson Iron Bar + 5 Orichalcum Bar + 5 Petrified Amber Bar + 10 Wheat.
Name: 10% increased Ore found in Areas.
Upgrade cost: 2,240 Gold + 30 Crimson Iron Bar + 15 Petrified Amber Bar + 10 Bismuth Bar.
Name: +3 to Maximum Miners
Can Mine Verisium.
Upgrade cost: 6,200 Gold + 40 Orichalcum Bar + 25 Bismuth Bar + 20 Corn.
Name: 15% increased Mining Speed.
Upgrade cost: 10,645 Gold + 80 Crimson Iron Bar + 70 Orichalcum Bar + 25 Verisium Bar.
Name: 15% increased Ore found in Areas.
Upgrade cost: 16,685 Gold + 150 Orichalcum Bar + 100 Petrified Amber Bar + 35 Verisium Bar.
Name: Ores found in Areas are more likely to be rarer varieties.
Upgrade cost: 22,515 Gold + 200 Crimson Iron Bar + 120 Petrified Amber Bar + 50 Verisium Bar.
Name: 20% increased Ore found in Areas.
Upgrade cost: 27,155 Gold + 250 Orichalcum Bar + 100 Bismuth Bar + 100 Pumpkin.
Name: Marking Ore in Areas grants Gold equal to the amount of Ore.
Upgrade cost: 45,570 Gold + 200 Petrified Amber Bar + 120 Bismuth Bar + 80 Verisium Bar.
Name: Can smelt Bismuth Ore.
Upgrade cost: 5,030 Gold + 100 Orichalcum Bar + 100 Petrified Amber Bar.
Name: +2 to Maximum Smelters.
Upgrade cost: 8,875 Gold + 150 Petrified Amber Bar + 100 Bismuth Bar + 50 Wheat.
Name: Can smelt Verisium Ore.
Upgrade cost: 13,905 Gold + 250 Crimson Iron Bar + 200 Orichalcum Bar + 100 Bismuth Bar.
Name: +2 to Maximum Smelters.
Upgrade cost: 18,765 Gold + 200 Bismuth Bar + 120 Verisium Bar + 80 Corn.
Name: 20% increased Smelting Speed.
Upgrade cost: 21,795 Gold + 400 Crimson Iron Bar + 150 Bismuth Bar + 100 Verisium Bar.
Name: +3 to Maximum Smelters.
Upgrade cost: 27,000 Gold + 400 Orichalcum Bar + 200 Bismuth Bar + 100 Pumpkin.
Name: 25% increased Smelting Speed.
Upgrade cost: 44,115 Gold + 400 Petrified Amber Bar + 250 Bismuth Bar + 150 Verisium Bar.
Bismuth Ore Shipment Value: 9. Bismuth Bar Shipment Value: 37. Reward (Riben Fell): Quality/Vaal skill gems. Reward (Ngakanu): Quality support gems. Reward (Pondium): Flasks. Reward (Te Onui): Jewels (can be double corrupted). Reward (Kalguur): Ward Armour.
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Name: Can establish Disenchanting and Recombination
Recruits can have job specialty up to rank 5
(this improvement increases the reroll cost for new recruits).
Upgrade cost: 900 Gold + 60 Bismuth Ore + 35 Corn + 15 Pumpkin.
Name: +25 to Maximum Town Population
Recruits can have job specialty up to rank 6
(this improvement increases the reroll cost for new recruits).
Upgrade cost: 3,170 Gold + 200 Bismuth Ore + 40 Wheat + 150 Pumpkin.
Name: Can Ship to Pondium and Te Onui.
Upgrade cost: 2,535 Gold + 80 Crimson Iron Bar + 60 Orichalcum Bar + 123 Bismuth Ore.
Name: +1 Ship.
Upgrade cost: 4,610 Gold + 140 Petrified Amber Bar + 90 Bismuth Bar.
Name: +2 to Maximum Ship Crew.
Upgrade cost: 16,180 Gold + 320 Bismuth Bar + 200 Verisium Bar + 150 Wheat.
Name: +1 Ship.
Upgrade cost: 18,790 Gold + 600 Crimson Iron Bar + 400 Petrified Amber Bar + 300 Bismuth Bar.
Name: Ports Quotas are 50% more rewarding.
Upgrade cost: 32,745 Gold + 500 Orichalcum Bar + 300 Bismuth Bar + 200 Verisium Bar.