Contrary to popular belief among players searching for traditional RPG equipment, Age of Empires 4 does not feature physical armor sets hidden in specific map chests or open-world dungeon locations. Instead, the game operates on an RTS economic and technological progression system where "armor sets" are researched at the Blacksmith building or granted inherently through specific civilization bonuses, unique unit traits, and map-controlled Relics. To maximize your military units' damage reduction and defense stats, you must advance through the Ages—from the Dark Age up to the Imperial Age—and invest resources into Blacksmith upgrade trees like Plate Armor, Balanced Weapons, and Textured Cuirass.
Understanding the Blacksmith Tech Tree: The True Armor Sets
Your journey to outfitting your army with the best defensive statistics begins the moment you construct a Blacksmith. In Age of Empires 4, armor upgrades are categorized into three distinct tiers that mirror the progression of your civilization. For comprehensive strategy tips on mastering complex RTS economies, check out our guide on Arknights Best Meta Strategy Guide or brush up on tactical positioning via Counter-Strike 2 Best Starting Build Guide for fast-paced combat insights.
Each tier of armor research directly impacts specific unit classes, including infantry, archers, and cavalry. Below is the complete breakdown of the Blacksmith armor research tree, including costs, prerequisite ages, and stat bonuses:
- Tier 1: Padding (Feudal Age) — Cost: 75 Food, 50 Gold. Research Time: 30 seconds. Applies to Archers and Skirmishers, increasing ranged armor by +1.
- Tier 1: Forged Blades / Leather Undershirt (Feudal Age) — Cost: 75 Food, 50 Gold. Research Time: 30 seconds. Boosts melee infantry armor and attack power.
- Tier 2: Specialized Armor (Castle Age) — Cost: 150 Food, 100 Gold. Research Time: 45 seconds. Increases melee and ranged armor by an additional +1 for Man-at-Arms and Knights.
- Tier 3: Plate Armor (Imperial Age) — Cost: 300 Food, 200 Gold. Research Time: 60 seconds. Grants maximum defensive capabilities, providing +2 armor across the board to heavy infantry and cavalry units.
Failing to queue these upgrades before engaging in large-scale battles will leave your frontline troops vulnerable to enemy archers and siege engines. Always prioritize the Blacksmith as soon as you transition into the Castle Age.
Civilization-Specific Armor Bonuses and Unique Units
While the standard Blacksmith tree is available to all civilizations, certain factions possess unique military units that come equipped with specialized heavy armor sets by default. Selecting the right civilization dictates how resilient your army will be during intense skirmishes. For more deep dives into character and unit rankings, take a look at our Clash of Clans Top 10 Strongest Characters Ranked editorial.
1. The Holy Roman Empire: Prelate Buffs and Heavy Infantry
The Holy Roman Empire excels at fielding heavily armored infantry. Their signature unit, the Landsknecht, trades armor for devastating area-of-effect damage, but their Man-at-Arms units can be buffed significantly using Prelates. When inspired by a Prelate, Holy Roman Empire units receive a massive boost to their armor values, attack speed, and movement speed, effectively creating an impenetrable wall of steel.
2. The French: Royal Knights and Specialized Cavalry Armor
French players have access to the Royal Knight, widely considered one of the tankiest cavalry units in the game. Thanks to their civilization's unique technology, Chivalry, and specialized plate armor upgrades available at the Archery Range and Stable, French cavalry regenerate health out of combat and shrug off standard spearman attacks if micro-managed correctly.
3. The English: Longbowmen and Network of Castles Defense
While English Longbowmen are renowned for their incredible range, the English civilization also gains passive defensive buffs via the Network of Castles mechanic. When units fight within the influence radius of Town Centers, Outposts, Towers, or Keeps, their attack speed is drastically increased, and their defensive stances harden against aggressive cavalry rushes.
Locating and Securing Relics for Ultimate Buffs
If you are exploring the map looking for mystical items that act as game-changing equipment sets, Relics are your primary target. Scattered across random locations on neutral or contested territory, Relics must be gathered by religious units (such as Monks, Scholars, or Prelates) and garrisoned inside Monasteries, Mosques, or specific landmark buildings.
Garrisoning Relics not only generates a steady stream of passive gold per minute (crucial for funding expensive Imperial Age armor upgrades) but also powers up defensive structures like the English Wyngarde Palace or triggers unique technological synergies depending on your chosen civilization. To optimize your resource gathering and map control while hunting for Relics, review our tips on How to Level Up Fast in Wuthering Waves and master inventory management principles discussed in How to Unlock All Secret Characters in Dave the Diver.
Advanced Tactics: Countering Enemy Armor Sets
Knowing how to upgrade your own armor is only half the battle; you must also understand how to shred through enemy heavy armor sets when facing formidable opponents in multiplayer matches. Investing solely in high-tier armor will fail if you neglect counter-units.
When encountering heavily armored formations such as Chinese Palace Guards or Abbasid Ghulam units, deploy the following tactical counters:
- Crossbowmen: These ranged units deal bonus damage against heavily armored targets, bypassing high defense statistics with specialized bolt attacks.
- Spearman and Pikemen: Essential for stopping charging cavalry units that rely on heavy plating and momentum. Position them behind defensive wooden walls.
- Mangonels and Siege Weapons: Area-of-effect siege damage ignores individual unit armor values, tearing through tightly packed infantry clusters instantly.
For official patch notes, developer updates, and community guides, consult the Official Age of Empires Website or check out the game's official hub on the Steam Store Page. For further technical troubleshooting and optimization advice to ensure smooth frame rates during massive army clashes, read our guide on How to Fix Lag and Low FPS in Project Zomboid.
Optimizing Your Build Order for Early Armor Advantages
To successfully execute an armor-heavy strategy in competitive play, your early-game build order must be airtight. Wasting villagers on unnecessary structures will delay your transition to the Feudal and Castle Ages, leaving your military vulnerable to early rushes.
Follow this optimized economic split to secure your Blacksmith upgrades efficiently:
- Dark Age (Villagers 1-6): Send all starting villagers to gather food from nearby sheep. Queue additional villagers at the Town Center continuously.
- Dark Age (Villagers 7-10): Direct new villagers to chop wood to prepare for your Lumber Camp and early houses.
- Feudal Age Transition: Pull villagers from food and wood to construct your Age-Up Landmark (e.g., School of Cavalry for the French or Council Hall for the English).
- Feudal Age Execution: Immediately build a Blacksmith upon reaching the Feudal Age. Assign two villagers to mine gold to pay for Padding and Forged Blades research while maintaining food production for unit training.
- Castle Age Pivot: Transition a large portion of your workforce to stone and gold mining to secure strategic Keeps and fund your Tier 2 and Tier 3 armor researches.
By strictly adhering to this economic tempo, your army will consistently out-tech and out-armor opponents who fail to prioritize timely technological advancements.