Critical hit

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Critical hits occur randomly when striking enemies. By default, each successful hit on an enemy has a 4% chance of being a "critical hit", dealing approximately double the usual damage of the weapon in use with 40% more knockback. A small number of weapons have a base critical strike chance that is higher than the default 4%. In addition, certain modifiers, armor bonuses, accessories, and buffs can boost the player's effective critical strike chance.

Visually, critical hits are displayed as slightly exaggerated bold damage numbers that linger on-screen for a longer period, have deeper color, and travel slightly higher than damage numbers from ordinary hits.

Notes

  • In the terms of average damage per second, the same amount of damage increase equates to the same amount of critical strike increase when the critical strike chance is below 100%, if one disregard damage rounding. However, because the bonus damage from critical hits are calculated after calculating the defense of the target:
    • For a target with a non-zero amount of defense, equivalent amounts of increase to damage is more effective than to critical strike chance, and its effectiveness linearly increases as the defense increases.
    • The edge damage increase has over critical strike chance increase linearly diminishes as the defense negates more damage than the damage of the original hit, without any bonuses.
    • Because all hits must deal at least 1 damage, if the defense is large enough to negate the highest damage possible in the scenarios provided, critical strike increases are always more effective than damage increases, since damage increases do nothing. This can be seen on enemies such as the Dungeon Guardian.
    • That being said, having a mix of both increases will always be more effective than just having one, due to the fact that the average damage per second increases stack multiplicatively between damage and critical strike chance increases.
  • Minions cannot normally deal critical hits, only by wearing a full set of Monk armor (16.7%) or Shinobi Infiltrator armor (25%) with any of the Lightning Aura sentry summons or by using a Morning Star (12%) or Kaleidoscope (10%) with any minion can crits be dealt at a fixed rate depending on which is used.
  • Players attacking other players in PvP will also not deal critical hits.

Weapons with non-standard base critical strike chance

Weapon Base
Critical Chance
MusketMusket
Internal Item ID: 96
11%
SunfurySunfury
Internal Item ID: 220
11% / 4%
Poisoned KnifePoisoned Knife
Internal Item ID: 287
8%
Ice BoomerangIce Boomerang
Internal Item ID: 670
6% / 4%
KeybrandKeybrand
Internal Item ID: 671
20% / 4%
MarrowMarrow
Internal Item ID: 682
9%
Ice BladeIce Blade
Internal Item ID: 724
6%
Sniper RifleSniper Rifle
Internal Item ID: 1254
29% / 19%
Staff of EarthStaff of Earth
Internal Item ID: 1296
24% / 4%
S.D.M.G.S.D.M.G.
Internal Item ID: 1553
14% /
4%
Candy Corn RifleCandy Corn Rifle
Internal Item ID: 1782
10%
Jack 'O Lantern LauncherJack 'O Lantern Launcher
Internal Item ID: 1784
10%
Stake LauncherStake Launcher
Internal Item ID: 1835
14%
Pulse BowPulse Bow
Internal Item ID: 2223
11%
RevolverRevolver
Internal Item ID: 2269
9%
KatanaKatana
Internal Item ID: 2273
19%
Obsidian SwordfishObsidian Swordfish
Internal Item ID: 2331
24%
Shadowflame BowShadowflame Bow
Internal Item ID: 3052
7%
Shadowflame Hex DollShadowflame Hex Doll
Internal Item ID: 3053
7%
Shadowflame KnifeShadowflame Knife
Internal Item ID: 3054
7%
Wand of SparkingWand of Sparking
Internal Item ID: 3069
14%
Slap HandSlap Hand
Internal Item ID: 3258
19%
KrakenKraken
Internal Item ID: 3291
14%
Paintball GunPaintball Gun
Internal Item ID: 3350
11%
TerrarianTerrarian
Internal Item ID: 3389
14%
Sky FractureSky Fracture
Internal Item ID: 3787
24%
Aerial BaneAerial Bane
Internal Item ID: 3859
7%
Morning StarMorning Star
Internal Item ID: 4679
14%
Stellar TuneStellar Tune
Internal Item ID: 4715
24%
First FractalFirst Fractal
Internal Item ID: 4722
14%
StarlightStarlight
Internal Item ID: 4923
14%
ZenithZenith
Internal Item ID: 4956
14%
Lucy the AxeLucy the Axe
Internal Item ID: 5095
14%
Wand of FrostingWand of Frosting
Internal Item ID: 5147
14%

Boost gear

Melee

Item Critical Chance
Solar Flare HelmetSolar Flare Helmet +26%
Moon CharmMoon Charm +2% (during night)
AleAle +2%
Mythril HelmetMythril Helmet +8%
Adamantite HelmetAdamantite Helmet +7%
Titanium MaskTitanium Mask +8%
Hallowed MaskHallowed Mask +10%
Chlorophyte MaskChlorophyte Mask +6%
Turtle Scale MailTurtle Scale Mail +8%
Turtle LeggingsTurtle Leggings +4%
Beetle Scale MailBeetle Scale Mail +8%
Beetle ShellBeetle Shell +5%
Frost BreastplateFrost Breastplate +11%
Squire's GreavesSquire's Greaves +15%
Monk's PantsMonk's Pants +15%
Valhalla Knight's GreavesValhalla Knight's Greaves +20%
Shinobi Infiltrator's PantsShinobi Infiltrator's Pants +20%

Ranged

Item Critical Chance
Fossil HelmetFossil Helmet +3%
Fossil PlateFossil Plate +3%
Fossil GreavesFossil Greaves +3%
Cobalt MaskCobalt Mask +6%
Mythril HatMythril Hat +7%
Adamantite MaskAdamantite Mask +8%
Palladium HelmetPalladium Helmet +9%
Orichalcum HelmetOrichalcum Helmet +15%
Titanium HelmetTitanium Helmet +7%
Hallowed HelmetHallowed Helmet +8%
Shroomite Headpiece (All helmets) +5%
Shroomite BreastplateShroomite Breastplate +13%
Shroomite LeggingsShroomite Leggings +7%
Vortex HelmetVortex Helmet +7%
Vortex BreastplateVortex Breastplate +12%
Vortex LeggingsVortex Leggings +8%
Cloak from Shroomite armor Up to +10%
Cloak from Vortex armor Up to +20%
Frost BreastplateFrost Breastplate +11%
Huntress's WigHuntress's Wig +10%
Red Riding HoodRed Riding Hood +10%
Sniper ScopeSniper Scope +10%
Recon ScopeRecon Scope +10%
Titan HelmetTitan Helmet +10%
Titan MailTitan Mail +10%

Magic

Item Critical Chance
Crystal BallCrystal Ball +2%
Gypsy RobeGypsy Robe +6%
Magic HatMagic Hat +7%
Jungle armorJungle armor +12% / 9%
Cobalt HatCobalt Hat +9%
Adamantite HeadgearAdamantite Headgear +11%
Palladium HeadgearPalladium Headgear +7%
Orichalcum HeadgearOrichalcum Headgear +18%
Titanium HeadgearTitanium Headgear +7%
Hallowed HeadgearHallowed Headgear +12%
Spectre MaskSpectre Mask +5%
Spectre RobeSpectre Robe +7%
Wizard HatWizard Hat with a Robe +10%
Apprentice's TrousersApprentice's Trousers +20%
Dark Artist's LeggingsDark Artist's Leggings +25%
Spectral HeadgearSpectral Headgear +15%
Spectral ArmorSpectral Armor +10%
Nebula BreastplateNebula Breastplate +9%

All

Item Critical Chance
Well FedWell Fed +2%
Plenty SatisfiedPlenty Satisfied +3%
Exquisitely StuffedExquisitely Stuffed +4%
Brain of ConfusionBrain of Confusion
(Cerebral Mindtrick)
+10%
Rage PotionRage Potion +10%
GiGi +5%
Cobalt BreastplateCobalt Breastplate +5%
Mythril GreavesMythril Greaves +10%
Adamantite LeggingsAdamantite Leggings +7%
Palladium BreastplatePalladium Breastplate +2%
Palladium LeggingsPalladium Leggings +1%
Orichalcum BreastplateOrichalcum Breastplate +6%
Titanium BreastplateTitanium Breastplate +3%
Titanium LeggingsTitanium Leggings +3%
Hallowed Plate MailHallowed Plate Mail +7%
Chlorophyte Plate MailChlorophyte Plate Mail +7%
Chlorophyte GreavesChlorophyte Greaves +8%
Precise or Lucky modifier on accessories +2% or +4%
Destroyer EmblemDestroyer Emblem +8%
Eye of the GolemEye of the Golem +10%
Putrid ScentPutrid Scent +5%
Celestial StoneCelestial Stone +2%
Celestial ShellCelestial Shell +2%
Sun StoneSun Stone +2%
Moon StoneMoon Stone +2%
Reforged weapons Max +5%
Ninja HoodNinja Hood ( only) +3%
Ninja ShirtNinja Shirt ( only) +3%
Ninja PantsNinja Pants ( only) +3%
Dragon MaskDragon Mask +15%
Dragon BreastplateDragon Breastplate +10%

Notes

  • Damage is doubled after being reduced by defense.
  • When held, weapon modifiers affect all outgoing critical hits from that class's projectiles. Weapon modifiers will cease affecting critical chance when not selected.
  • While ammo might seem to be affected by crit bonuses, crit chance actually entirely depends on weapon stats.
  • It is generally best to attempt to equalize total accessory crit chance bonus and total accessory damage bonus, as this will maximize the overall DPS.

Maximizing critical hits

Melee
  • Maximum critical strike chance is 167%, attained by combining the following:
  • Any accessory with the Lucky modifier can be equipped in the remaining 2 accessory slots.
  • Although the Psycho KnifePsycho Knife will increase critical strike chance by 30% at its stealth mode, the critical strike chance shown in the tooltip will be 100% when the actual critical strike chance is higher than 100%.
Melee
  • Maximum critical chance is 121%, attained by combining the following:
Ranged
  • Maximum critical strike chance is 178%, attained by combining the following:
Ranged
  • Maximum critical strike chance is 124%, attained by combining the following:
  • As this chance caps at 100%, minor bonus items like Celestial StoneCelestial Stone (-2) or Moon StoneMoon Stone (-2) can be swapped, and switch the armor to full Shroomite armorShroomite armor (-10) and still have 100% chance. It is even possible to use a different weapon (-15) as the stealth effect from the Shroomite armor will add an extra 10% back when necessary.
Magic
  • Maximum critical strike chance is 160%, attained by combining the following:
  • Any accessory with the Lucky modifier can be equipped in the remaining 2 accessory slots.
  • Any of these weapons can be used: Sky Fracture, Staff of Earth, or Stellar Tune.
Magic
  • Maximum critical strike chance is 94%, attained by combining the following with any Mythical weapon and any Lucky accessory:

History

  • Desktop 1.2.1.2: Critical Strike increase on accessory reforges have been doubled. Example: The Lucky Reforge was boosted from 2% to 4%.