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Expert mode

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Desktop versionConsole versionMobile version Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Click to Learn more about Expert Mode  Expert Mode-Only Content: This information applies only to Expert mode and Expert mode worlds.
Not to be confused with Hardmode, which is triggered by defeating the Wall of Flesh in Expert, Classic and Master worlds.

"Fortune & Glory, Kid."

Expert mode is an option that can be selected during world creation. It greatly increases the difficulty of the game, as well as the quantity and quality of drops and increases the chances to get rare items. It also offers Expert mode-exclusive items. Expert mode begins the moment the Expert mode world is created, and cannot be altered after that by the player. Desktop versionIn Journey Mode, Expert mode can be toggled using the difficulty slider.

General[edit | edit source]

  • Most enemies have twice as much health, do about twice as much damage, and receive 10% less knockback.
    • Weaker enemies, excluding bosses and their minions, may get an additional multiplier to the above stats in Hardmode and additionally after Plantera has been defeated.
    • Specific enemies (such as all bosses) have additional multipliers to their stats.
  • Enemies and bosses have new AIs with higher difficulty attack patterns.
  • Enemies can spawn near NPCs, although they still will not spawn in front of placed background walls.
  • Enemies drop more loot, including higher chances (usually 50% or 100% extra chance) to drop certain items.
  • Some enemies inflict additional debuffs, or have an increased chance to inflict a debuff that they already inflict.
  • Enemies can pick up coins dropped by enemies or players. Enemies holding dropped coins emit a sparkle effect based on the color of the best coin they are holding.
    • Picked-up coins will be reset on NPC transformation, therefore the player cannot retrieve coins from enemies like spiders after they have transformed into their alternate form (from horizontal form to wall form, or reverse) or other enemies behaving similarly.
    • On Desktop version Desktop version, Expert Mode enemies who steal your money will be saved in that area and respawn if you come back. You can see their locations and how much money they have on the map.
  • Softcore mode players drop 75% of their coins upon death instead of 50%.
  • The general respawn time is increased to 15 seconds, while respawn time during boss fights is increased to 30 seconds.
  • Slime Rain can occur without its usual criteria, spawn rates are 15% higher, and Green/Purple Slimes have a higher spawn chance.
  • Lowering the Celestial Pillars' shields requires killing 150 of their enemies, instead of 100.
  • Killing Pumpkin/Frost Moon enemies progresses the event twice as fast, due to the increased health of their enemies.
  • All NPCs do 1.5× their regular damage.Verify
  • The Traveling Merchant has a 50% chance to sell an additional item.

Enemies[edit | edit source]

New enemy attacks[edit | edit source]

  • Bats have a chance to inflict the Feral Bite debuff.
  • Some Zombies carry a Zombie Arm, causing them to have an extended attack range and higher damage.
  • Spiked Slimes can shoot up to 6 spikes at once in a small area around them.
  • Some Skeletons can throw Bones.
  • Lava Slimes leave behind a block of lava when killed.
  • Jellyfish gain a new shock attack in which they move in a straight line and take no damage. If hit by melee attacks, the player is shocked.
  • Some Black Recluses gain an additional spit attack which renders the player unable to move for a short duration.
  • Granite Elementals can shield themselves from attacks, similar to Granite Golems, but will only do so if they have less than 50% health.

Bosses[edit | edit source]

  • Bosses in Expert mode have increased health. Their health is boosted even further in multiplayer, with more health added for each player.
    • Each boss has their own boost factor, which is a decimal number greater than 1. For example, Skeletron has a boost factor of 2.0 and Plantera has a boost factor of 1.4.
    • In single player, Expert boss health follows this formula: ExpertHealth = NormalHealth * BoostFactor
    • In multiplayer, Expert bosses multiply their health further based on the number of players: ExpertHealth = NormalHealth * BoostFactor * MultiplayerFactor
      • The multiplayer factor is increased incrementally for each player: MultiplayerFactor = 1 + HealthAdded[2] + HealthAdded[3] + ...
      • The base amount of health added per player is 35%. That is, HealthAdded[2] = 0.35.
      • Each consecutive player adds more health than the last: HealthAdded[n+1] = HealthAdded[n] + (1 - HealthAdded[n]) / 3
      • If there are ten or more players, the multiplayer health boost is modified using this formula: MultiplayerFactor = (MultiplayerFactor * 2 + 8) / 3
      • The multiplayer factor cannot exceed 1,000. This limit is never reached in practice because it requires 1,498 players, and Terraria servers cannot have more than 255 players.
    • Boss health is determined at the time the boss is spawned. If a player joins the server after the boss has spawned, the boss's health will not update to account for the additional player.
  • Most bosses gain a new attack or movement pattern which makes them more difficult. For example, Duke Fishron gains a third stage.
  • When defeated, each boss (except for the Lunatic Cultist, Dark Mage, and Ogre) drops an Expert-exclusive Treasure Bag unique to that boss. Each Treasure Bag contains a greater quantity of the boss's usual drops from normal mode, along with unique Expert mode-exclusive items. These items can all be used in non-Expert mode worlds, with the exception of the Demon Heart. Hardmode bosses' Treasure Bags additionally have a 5% chance to contain one random set of developer items. Treasure Bags can be opened in both Expert mode and Normal worlds.

Items[edit | edit source]

Player[edit | edit source]

Expert-exclusive items[edit | edit source]

For the category page, see Category:Expert mode content.

Expert mode-exclusive items are found inside Treasure Bags, dropped by bosses, and have the Rarity level: Rainbow rarity, apart from 0x33's Aviators. While these items can only be obtained via an Expert mode world, they still function in regular worlds, excluding the Demon Heart.

Boss Items Usage
King Slime Royal GelRoyal GelDesktop VersionConsole VersionMobile Version Slimes become passive around the player and deal no damage. Has no effect on the character's look.
Eye of Cthulhu Shield of CthulhuShield of CthulhuDesktop VersionConsole VersionMobile Version Allows the player to use a "dash" attack, 2 defense.
0x33's Aviators0x33's AviatorsDesktop VersionConsole Version Vanity item. Only obtained in Master mode or when the Treasure Bag is opened by a Hardcore character.
Eater of Worlds Worm ScarfWorm ScarfDesktop VersionConsole VersionMobile Version Reduces all damage taken by 17%.
Brain of Cthulhu Brain of ConfusionBrain of ConfusionDesktop VersionConsole VersionMobile Version Desktop VersionHas a chance to create illusions and dodge an attack.

Desktop VersionTemporarily increase critical chance after dodge.

May confuse nearby enemies after being struck.

Skeletron Bone GloveBone GloveDesktop VersionConsole VersionMobile Version Throws Bones; 33% chance to not consume bone.
Queen Bee Hive PackHive PackDesktop VersionConsole VersionMobile Version Increases the strength of friendly bees.
Wall of Flesh Demon HeartDemon HeartDesktop VersionConsole VersionMobile Version Permanently increases the number of accessory slots from 5 to 6. (The slot is only functional in Expert mode worlds, and will not show up in normal mode worlds)
The Destroyer Mechanical Wagon PieceMechanical Wagon PieceDesktop VersionConsole VersionMobile Version Used to craft the Mechanical Cart.
The Twins Mechanical Wheel PieceMechanical Wheel PieceDesktop VersionConsole VersionMobile Version Used to craft the Mechanical Cart.
Skeletron Prime Mechanical Battery PieceMechanical Battery PieceDesktop VersionConsole VersionMobile Version Used to craft the Mechanical Cart.
Queen Slime Volatile GelatinVolatile GelatinDesktop Version Releases volatile gelatin periodically that damages enemies.
Empress of Light Soaring InsigniaSoaring InsigniaDesktop Version Grants infinite wing and rocket boot flight.

Increases flight and jump mobility.

Plantera Spore SacSpore SacDesktop VersionConsole VersionMobile Version Summons spores over time that will damage enemies.
Golem Shiny StoneShiny StoneDesktop VersionConsole VersionMobile Version Greatly increases life regeneration when the player is not moving.
Duke Fishron Shrimpy TruffleShrimpy TruffleDesktop VersionConsole VersionMobile Version Mount with endless flying and travels through water faster.
Moon Lord Gravity GlobeGravity GlobeDesktop VersionConsole VersionMobile Version Allows the holder to reverse gravity.
Suspicious Looking TentacleSuspicious Looking TentacleDesktop VersionConsole VersionMobile Version Light pet that exposes nearby enemies, treasures, pots and ores.
Celestial StarboardCelestial StarboardDesktop Version The best Wings in the game.
Mourning Wood Witch's BroomWitch's BroomDesktop Version Allows infinite flight and hover.


Trivia[edit | edit source]

History[edit | edit source]

  • Desktop 1.3.0.4:
    • Fixed hittable enemy projectiles not scaling in Expert mode.
    • Fixed air items being left over when monsters pick up coins in Expert mode.
  • Desktop 1.3.0.1: Introduced. Bosses now drop special Expert mode-only items.

Footnotes[edit | edit source]

  1. The increased defense is still less effective than normal, because enemy damage is multiplied by about 2 while damage reduction is only multiplied by 1.5. As a result, the player will take more than twice as much damage from enemies given the same amount of defense. For example, assuming the player is wearing full melee Adamantite armor (50 defense) with no other defense bonuses and gets hit by a Giant Bat (45 damage in normal mode). In normal mode, they get 25 damage reduction from 45 damage and take 20 damage. In Expert mode, they get 38 damage reduction from 90 damage and take 52 damage.