Defense

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Defense is a player statistic that determines how much damage can be taken per hit. On non-Expert mode worlds, the damage the player takes is reduced by half of their defense value, altogether. In Expert mode, damage the player takes is reduced by three-quarters of their defense value, rounded up. Defense can be increased by equipping armor and accessories, or temporarily boosted by various buffs. No attack can be reduced below 1 damage (with the exception of a player with an ally wearing the Paladin's Shield).

Some forms of damage are impossible to reduce through defense. Damage from health-draining Debuffs like Cursed Inferno, drowning in water, or colliding with a boulder are not reduced by defense.

Damage taken from lava can be reduced through defense.

Mechanics[edit | edit source]

Defense gives an arithmetic reduction in damage: i.e. damage is reduced by a fixed amount per hit (as opposed to a geometric damage reduction, which would reduce damage by a percentage).

Non-Expert mode Formula[edit | edit source]

The formula is:

net damage = attack - (defense * 0.5)

For example:

  • With 10 Defense, a 20 Damage attack is reduced by 5, resulting in 15 damage taken.
  • With 21 Defense, a 20 Damage attack is reduced by 11, resulting in 9 damage taken.

Expert mode Formula[edit | edit source]

In expert mode, the formula is:

net damage = attack - (defense * 0.75)

For example:

  • With 20 Defense, a 40 Damage attack is reduced by 15, resulting in 25 damage taken.
  • With 30 Defense, a 40 Damage attack is reduced by 23, resulting in 17 damage taken.

Note that in expert mode only the player's defense follows the formula. Enemies will still take the same amount of damage as in normal mode.

Enemies[edit | edit source]

Enemies have the same Defense mechanics as players. Monsters with high defense will take virtually no damage from low damage weapons (e.g. Fire Imps take 5 damage from the Minishark with Musket Balls). Accordingly, when fighting high defense monsters, high damage weapons are preferable.

Armor[edit | edit source]

Armor
 
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Wood Wooden • Rich Mahogany • Desktop VersionConsole VersionOld-gen console versionMobile Version Palm Wood • Desktop VersionConsole VersionOld-gen console versionMobile Version Boreal Wood • Ebonwood • Pearlwood • Shadewood
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Post-Plantera Shroomite • Tiki • Spectre • Beetle • Spooky

Defense boosts[edit | edit source]

Here is a list of accessories, and their respective defense bonuses. A list of armor including defenses can be found on the armor page.

Item Accessory Defense
Shackle.png Shackle 1
Cobalt Shield.png Cobalt Shield 1
Obsidian Skull.png Obsidian Skull 1
Shield of Cthulhu.png Shield of CthulhuDesktop VersionConsole Version 2
Obsidian Shield.png Obsidian Shield 2
Moon Charm.png Moon Charm 3 (only during the night)
Moon Shell.png Moon Shell 3 (only during the night)
Moon Stone.png Moon Stone 4 (only during the night)
Sun Stone.png Sun Stone 4 (only during the day)
Celestial Stone.png Celestial StoneDesktop VersionConsole VersionOld-gen console versionMobile Version 4
Ankh Shield.png Ankh Shield 4
Paladin's Shield.png Paladin's Shield 6 (Absorbs 25% of damage done to players on your team

Only active above 25% life)

Celestial Shell.png Celestial ShellDesktop VersionConsole Version 4 (during the day)

7 (during the night)

Flesh Knuckles.png Flesh KnucklesDesktop VersionConsole Version 7
Frozen Turtle Shell.png Frozen Turtle Shell 0 until below 50% health when it reduces total damage by 25% Desktop Version

30 (When below 25% health)Mobile VersionConsole Version

Modifiers 4 (Max per accessory)
Buff / Debuff Temporary Defense
Well Fed.png Well Fed 2
Dryad's Blessing.png Dryad's Blessing (Buff) 8
Ironskin.png Ironskin 8
Tipsy.png Tipsy Defense reduced by 4
Weak.png Weak Defense reduced by 4
Ichor (debuff).png Ichor (debuff) Defense reduced by 20
Broken Armor.png Broken Armor Defense reduced by half

Damage reduction boosts[edit | edit source]

Buff Source Damage reduction bonus
Solar Blaze.png Solar Blaze Solar armor 30%
Beetle Endurance 45.png Beetle Endurance Beetle armor 15%/30%/45%
Paladin's Shield (buff).png Paladin's Shield Paladin's Shield 25% (Only active above 25% life)
Endurance.png Endurance Endurance Potion 10%
Ice Barrier.png Ice Barrier Frozen Turtle Shell 0 Old-gen console versionMobile Version/ 25% (When below 50% health) Desktop Version
Warmth.png Warmth Warmth Potion 30% (Reduces damage only from cold-themed enemies)
Item Source Damage reduction bonus
Worm Scarf.png Desktop Version Worm Scarf Treasure Bag (Eater of Worlds) 17%

Armor Penetration[edit | edit source]

Desktop versionConsole version Desktop/Console-Only Content: This section's information applies only to the Desktop and Console versions of Terraria.

Armor penetration is a statistic that reduces the defense of the player's targets. For instance, a Pixie normally has 20 defense. If the player has 5 Armor Penetration, then the Pixie will be taken to have 15 defense instead.

Source Armor penetration bonus
Shark Tooth Necklace.png Shark Tooth Necklace 5
Sharpening Station.png Sharpening Station 4 for Melee Weapons only

Notes[edit | edit source]

Click to Visit Pages to be Rewritten It has been suggested that this page/section be rewritten.
Reason: "Needs version separation"
  • The highest possible defense is 165 normally, and 173 in expert mode.
    • Chlorophyte Mask,Solar Flare Breastplate and Solar Flare Leggings or Vortex Leggings - 79 defense
    • Flesh Knuckles - 7 defense
    • Celestial Shell - 7 defense if worn at night
    • Paladin's Shield - 6 defense
    • Guarding with the Brand of the Inferno - 20 defense
    • Any other two accessories that give 4 defense at night - 8 defense
    • Warding modifiers on all accessories - 20(normal)/24(expert) defense
    • Ironskin buff - 8 defense
    • Well fed buff - 2 defense
    • The Dryad's Blessing grants an additional 8 defense.
    • Riding a Mechanical Cart at full speed gives an additional 7 defense (expert mode only, but can be imported to a normal world). - However, you cannot guard with the Brand of the Inferno while riding a Mechanical Cart.
    • Any sixth accessory that gives 4 defense at night, with a Warding prefix (expert mode only).
  • The highest damage reduction is 87%.
 (100%-45%) * (100%-(25%+17%+10%+25%)) = 12.7% damage taken = 87.3% damage reduction

Trivia[edit | edit source]

  • Although not possible in-game, if a piece of armor were to gain a prefix, it would apply the effects just like an accessory would. For example, a set of Warding modified armor would add 12 defense total; each piece adds 4 defense to the total.
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