Armor

Armor is a set of equippable Defense items in Terraria, which reduce the amount of damage received from enemies, enemy players in PvP Mode, and the environment. Each piece of armor has a Defense Rating, which reduces damage of each attack by half its value, rounded up.

For example, a full set of Copper armor provides a Defense Rating of 6, reducing damage by 3 points. Silver armor, on the other hand, provides a Defense Rating of 13, reducing damage by 7 points, rounded up. However, an attack cannot be reduced to zero; all attacks will always deal at least 1 damage, regardless of the quality of a player's armor.

In addition to the Defense of each Armor piece, a complete set of Armor also confers a 'Set Bonus' when all three pieces of the same Armor type are worn at the same time. For the basic tier armor (Copper, Iron, Silver, and Gold) this is an additional bonus to Defense. For more unique armor types, a specialized bonus is given.

While armor normally comes in three parts (A Helmet, a Chest Piece, and Legs) certain Accessory items, like Shackles, can also add to the player's overall Defense.