During the Third War, Thrall's forces combined the features of a blacksmith and a lumber mill to create the War Mill, which functions both as a drop-off point for peons carrying lumber and a place where improvements are researched.
An invention of the crafty trolls, this structure maximizes potential by serving as a mill for lumber as well as a forge for weapons smithing. Here weapons and armor are tirelessly reworked for maximum efficiency. Trolls here can also create one of their most useful fortifications: spiked barricades.[2]
Increases the melee attack damage of Grunts, Raiders and Tauren.
Research Cost
Researched At
Upgrade Time
Effect
100 75
War Mill
60 sec.
Damage Dice Bonus: 1
Thorium Melee Weapons
Further increases the melee attack damage of Grunts, Raiders and Tauren.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
150 150
War Mill
Stronghold
75 sec.
Damage Dice Bonus: 2
Arcanite Melee Weapons
Further increases the melee attack damage of Grunts, Raiders and Tauren.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
200 225
War Mill
Fortress
90 sec.
Damage Dice Bonus: 3
Steel Unit Armor
Increases the armor of Grunts, Raiders, Troll Batriders, Tauren, Troll Headhunters, Troll Berserkers, Wind Riders and Demolishers.
Research Cost
Researched At
Upgrade Time
Effect
150 75
War Mill
60 sec.
Armor Bonus: 2
Thorium Unit Armor
Further increases the armor of Grunts, Raiders, Troll Batriders, Tauren, Troll Headhunters, Troll Berserkers, Wind Riders and Demolishers.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
225 200
War Mill
Stronghold
75 sec.
Armor Bonus: 4
Arcanite Unit Armor
Further increases the armor of Grunts, Raiders, Troll Batriders, Tauren, Troll Headhunters, Troll Berserkers, Wind Riders and Demolishers.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
300 325
War Mill
Fortress
90 sec.
Armor Bonus: 6
Steel Ranged Weapons
Increases the ranged attack damage of Troll Headhunters, Troll Berserkers, Wind Riders, Troll Batriders and Demolishers.
Research Cost
Researched At
Upgrade Time
Effect
100 100
War Mill
60 sec.
Damage Dice Bonus: 1
Thorium Ranged Weapons
Further increases the ranged attack damage of Troll Headhunters, Troll Berserkers, Wind Riders, Troll Batriders and Demolishers.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
150 175
War Mill
Stronghold
75 sec.
Damage Dice Bonus: 2
Arcanite Ranged Weapons
Further increases the ranged attack damage of Troll Headhunters, Troll Berserkers, Wind Riders, Troll Batriders and Demolishers.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
200 250
War Mill
Fortress
90 sec.
Damage Dice Bonus: 3
Spiked Barricades
Surrounds Orc buildings with spikes that damage enemy melee attackers. Deals 5 damage per attack plus an additional 20% damage of the attacker's damage.
Research Cost
Researched At
Upgrade Time
Effect
25 75
War Mill
60 sec.
Damage: 5 + 20% of the attacker's damage.
Improved Spiked Barricades
Increases the amount of additional damage inflicted on melee attackers by 30% of the attacker's damage.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
50 100
War Mill
Stronghold
75 sec.
Damage: 5 + 50% of the attacker's damage.
Reinforced Defenses
Upgrades Burrows and Watch Towers so that they have Fortified armor.
Surrounds Orc buildings with spikes that damage enemy melee attackers. Deals 4 damage per attack.
Research Cost
Researched At
Upgrade Time
Effect
25 75
War Mill
60 sec.
Damage: 4
Improved Spiked Barricades
Increases the amount of damage inflicted on melee attackers by 6.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
50 175
War Mill
Stronghold
75 sec.
Damage: 10
Advanced Spiked Barricades
Further increases the amount of damage inflicted on melee attackers by 6.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
75 275
War Mill
Fortress
90 sec.
Damage: 16
Spiked Barricades
Surrounds Orc buildings with spikes that damage enemy melee attackers. Deals 5 damage per attack plus an additional 20% damage of the attacker's damage.
Research Cost
Researched At
Upgrade Time
Effect
25 75
War Mill
60 sec.
Damage: 5 + 20% of the attacker's damage.
Improved Spiked Barricades
Increases the amount of additional damage inflicted on melee attackers by 30% of the attacker's damage.
Research Cost
Researched At
Requirements
Upgrade Time
Effect
50 100
War Mill
Stronghold
75 sec.
Damage: 5 + 50% of the attacker's damage.
Patch changes[]
Patch 1.31.0 (2019-05-28): Spiked Barricades: Reduced the number of upgrade levels from 3 to 2.