Armor

Armor is a set of equipable defense items that reduce damage taken from enemies and most other damage sources. Armor pieces are equipped by placing them in the armor slots of the player's inventory. Armor can also be placed in vanity slots to change the player's appearance without affecting stats. Armor pieces are either crafted, purchased from NPCs, or dropped from enemies.

Each piece of armor has a defense statistic that reduces inflicted damage by half / its value, rounded up. For example, a full set of Copper armor provides a total of defense, reducing damage by  /  points. Silver armor grants a total of defense, reducing damage by  /  points, after having been rounded up. An attack cannot be reduced to zero; all attacks will always deal at least 1 damage (or 2 damage for a critical hit), regardless of the quality of a player's armor.

In addition to the defense provided by individual armor pieces, most armor types provide a Set Bonus when all three pieces of the same armor type are worn simultaneously. For the basic pre-Hardmode ore armors (Copper through Platinum), this is an additional defense bonus. More advanced or unique armors can provide other specialized set bonuses (e.g., the Shroomite armor will provide invisibility when not moving).

There are 34 different armor sets obtainable in pre-Hardmode. There are 33 different armor sets obtainable in Hardmode. There are 7 robes and 2 wizard hats that give additional buffs. There are 7 miscellaneous armor pieces.

Wizard Set
Though not a traditional armor set, these hats and robes confer a set bonus when worn together.

Miscellaneous Armor
A few pieces of armor aren't part of any particular set.