Treasure Bag

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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Expert mode icon.png
Expert Mode-Only Content: This information applies only to Expert Mode and Expert Mode worlds.
Treasure Bag
  • Treasure Bag item sprite
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
TooltipDesktop version Right click to open /
Mobile version Double tap to open
RarityRarity level: Rainbow
Research3 required

Treasure Bags are consumable grab bag-like items obtained in Expert Mode and Master Mode as a reward for defeating bosses. The contents of Treasure Bags depend on the boss it comes from, and are opened by using either Open / Activate while inside the inventory, or Use / Attack when selected in the hotbar. In multiplayer, each player that deals damage to the boss receives one Treasure Bag upon defeating it. Treasure Bags are client-side and will despawn upon exiting the world. See Notes for details.

Each Treasure Bag contains the boss's usual drops from Classic Mode, along with one Expert Mode-exclusive item (highlighted items below) – with the exception of the Lunatic Cultist, Dark Mage, Ogre, and Betsy, who currently do not provide an Expert Mode-exclusive item. Treasure Bags dropped from Hardmode bosses additionally have a 1/16 (6.25%) chance to contain one random set of developer items (with the exception of Queen Slime).

Expert Mode-exclusive items all have the Rarity level: Rainbow rarity, with the exception of developer items, which have the Rarity level: 9 rarity.


Treasure Bag (King Slime)King SlimeInternal Item ID: 3318
Item Chance Amount
Royal GelRoyal Gel 100% 1
King Slime MaskKing Slime Mask 14.29% 1
Slimy SaddleSlimy Saddle 50% 1
Ninja HoodNinja Hood 66% 1
Ninja ShirtNinja Shirt 66% 1
Ninja PantsNinja Pants 66% 1
Slime GunSlime Gun 50% 1
Slime HookSlime Hook 50% 1
SolidifierSolidifier 100% 1
Gold CoinGold Coin 100% 1
Treasure Bag (Eye of Cthulhu)Eye of CthulhuInternal Item ID: 3319
Item Chance Amount
Shield of CthulhuShield of Cthulhu 100% 1
Eye of Cthulhu MaskEye of Cthulhu Mask 14.29% 1
BinocularsBinoculars 3.3% 1
Crimtane OreCrimtane Ore(Crimson world) 100% 30-87
Crimson SeedsCrimson Seeds(Crimson world) 100% 1-3
Demonite OreDemonite Ore(Corrupt world) 100% 30-87
Corrupt SeedsCorrupt Seeds(Corrupt world) 100% 1-3
Unholy ArrowUnholy Arrow(Corrupt world) 100% 20-49
Gold CoinGold Coin 100% 3
Treasure Bag (Eater of Worlds)Eater of WorldsInternal Item ID: 3320
Item Chance Amount
Worm ScarfWorm Scarf 100% 1
Eater of Worlds MaskEater of Worlds Mask 14.29% 1
Demonite OreDemonite Ore 100% 80–110 / 110–135
Shadow ScaleShadow Scale 100% 20–40 / 30–50
Eater's BoneEater's Bone 5% 1
Gold CoinGold Coin 100% 3
Treasure Bag (Brain of Cthulhu)Brain of CthulhuInternal Item ID: 3321
Item Chance Amount
Brain of ConfusionBrain of Confusion 100% 1
Brain of Cthulhu MaskBrain of
Cthulhu Mask
14.29% 1
Crimtane OreCrimtane Ore 100% 80–110 / 110–135
Tissue SampleTissue Sample 100% 20–40 / 30–50
Bone RattleBone Rattle 5% 1
Gold CoinGold Coin 100% 1
Treasure Bag (Queen Bee)Queen BeeInternal Item ID: 3322
Item Chance Amount
Hive PackHive Pack 100% 1
Queen Bee MaskQueen Bee Mask 14.29% 1
Bee GunBee Gun 33% 1
Bee KeeperBee Keeper 33% 1
The Bee's KneesThe Bee's Knees 33% 1
Honey CombHoney Comb 33% 1
NectarNectar 11% 1
Honeyed GogglesHoneyed Goggles 11% 1
Hive WandHive Wand 100% 1
Bee HatBee Hat 33% 1
Bee ShirtBee Shirt 33% 1
Bee PantsBee Pants 33% 1
BeenadeBeenade 100% 10-29
Bee WaxBee Wax 100% 17-29
Gold CoinGold Coin 100% 10
Treasure Bag (Skeletron)SkeletronInternal Item ID: 3323
Item Chance Amount
Bone GloveBone Glove 100% 1
Skeletron MaskSkeletron Mask 33% 1
Skeletron HandSkeletron Hand 33% 1
Book of SkullsBook of Skulls 33% 1
Gold CoinGold Coin 100% 5
Treasure Bag (Deerclops)DeerclopsInternal Item ID: 5111
Item Chance Amount
Bone HelmBone Helm 100% 1
Deerclops MaskDeerclops Mask 14.29% 1
Eye BoneEye Bone 33% 1
EyebrellaEyebrella 33% 1
Radio ThingRadio Thing 33% 1
Pew-matic HornPew-matic Horn 25% 1
Weather PainWeather Pain 25% 1
Houndius ShootiusHoundius Shootius 25% 1
Lucy the AxeLucy the Axe 25% 1
Gold CoinGold Coin 100% 10
Treasure Bag (Wall of Flesh)Wall of FleshInternal Item ID: 3324
Item Chance Amount
Demon HeartDemon Heart(when no Demon Heart used yet) 100% 1
Wall of Flesh MaskWall of Flesh Mask 14.29% 1
PwnhammerPwnhammer 100% 1
Summoner EmblemSummoner Emblem 25% 1
Sorcerer EmblemSorcerer Emblem 25% 1
Warrior EmblemWarrior Emblem 25% 1
Ranger EmblemRanger Emblem 25% 1
Laser RifleLaser Rifle 25% 1
Breaker BladeBreaker Blade 25% 1
Clockwork Assault RifleClockwork
Assault Rifle
25% 1
FirecrackerFirecracker 25% 1
Gold CoinGold Coin 100% 8
Treasure Bag (The Twins)The TwinsInternal Item ID: 3326
Item Chance Amount
Mechanical Wheel PieceMechanical
Wheel Piece
100% 1
Twin MaskTwin Mask 14.29% 1
Soul of SightSoul of Sight 100% 25-40
Hallowed BarHallowed Bar 100% 20-35
Gold CoinGold Coin 100% 12
Treasure Bag (The Destroyer)The DestroyerInternal Item ID: 3325
Item Chance Amount
Mechanical Wagon PieceMechanical
Wagon Piece
100% 1
Destroyer MaskDestroyer Mask 14.29% 1
Soul of MightSoul of Might 100% 25-40
Hallowed BarHallowed Bar 100% 20-35
Gold CoinGold Coin 100% 12
Treasure Bag (Skeletron Prime)Skeletron PrimeInternal Item ID: 3327
Item Chance Amount
Mechanical Battery PieceMechanical
Battery Piece
100% 1
Skeletron Prime MaskSkeletron Prime Mask 14.29% 1
Soul of FrightSoul of Fright 100% 25-40
Hallowed BarHallowed Bar 100% 20-35
Gold CoinGold Coin 100% 12
Treasure Bag (Plantera)PlanteraInternal Item ID: 3328
Item Chance Amount
Spore SacSpore Sac 100% 1
Plantera MaskPlantera Mask 14.29% 1
Temple KeyTemple Key 100% 1
SeedlingSeedling 6.67% 1
The AxeThe Axe 5% 1
Pygmy StaffPygmy Staff 50% 1
Thorn HookThorn Hook 10% 1
Grenade LauncherGrenade Launcher
+ Rocket IRocket I
14.29% 1
Venus MagnumVenus Magnum 14.29% 1
Nettle BurstNettle Burst 14.29% 1
Leaf BlowerLeaf Blower 14.29% 1
SeedlerSeedler 14.29% 1
Flower PowFlower Pow 14.29% 1
Wasp GunWasp Gun 14.29% 1
Gold CoinGold Coin 100% 15
Treasure Bag (Golem)GolemInternal Item ID: 3329
Item Chance Amount
Shiny StoneShiny Stone 100% 1
Golem MaskGolem Mask 14.29% 1
PicksawPicksaw 33.33% 1
+ Stynger BoltStynger Bolt
14.29% 1
Possessed HatchetPossessed Hatchet 14.29% 1
Sun StoneSun Stone 14.29% 1
Eye of the GolemEye of the Golem 14.29% 1
Heat RayHeat Ray 14.29% 1
Staff of EarthStaff of Earth 14.29% 1
Golem FistGolem Fist 14.29% 1
Beetle HuskBeetle Husk 100% 18-23
Gold CoinGold Coin 100% 12
Treasure Bag (Duke Fishron)Duke FishronInternal Item ID: 3330
Item Chance Amount
Shrimpy TruffleShrimpy Truffle 100% 1
Duke Fishron MaskDuke Fishron Mask 14.29% 1
Fishron WingsFishron Wings 10% 1
FlaironFlairon 20% 1
TsunamiTsunami 20% 1
Razorblade TyphoonRazorblade Typhoon 20% 1
Tempest StaffTempest Staff 20% 1
Bubble GunBubble Gun 20% 1
Silver CoinSilver Coin 100% 20
Treasure Bag (Empress of Light)Empress of LightInternal Item ID: 4782
Item Chance Amount
Soaring InsigniaSoaring Insignia 100% 1
Empress of Light MaskEmpress of Light Mask 14.29% 1
Empress WingsEmpress Wings 10% 1
Stellar TuneStellar Tune 5% 1
Prismatic DyePrismatic Dye 25% 1
Rainbow CursorRainbow Cursor 5% 1
StarlightStarlight 25% 1
NightglowNightglow 25% 1
EventideEventide 25% 1
KaleidoscopeKaleidoscope 25% 1
Treasure Bag (Betsy)BetsyInternal Item ID: 3860
Item Chance Amount
Betsy MaskBetsy Mask 14.29% 1
Aerial BaneAerial Bane 25% 1
Flying DragonFlying Dragon 25% 1
Betsy's WrathBetsy's Wrath 25% 1
Sky Dragon's FurySky Dragon's Fury 25% 1
Betsy's WingsBetsy's Wings 25% 1
Defender MedalDefender Medal 100% 30-49
Treasure Bag (Moon Lord)Moon LordInternal Item ID: 3332
Item Chance Amount
Gravity GlobeGravity Globe 100% 1
Suspicious Looking TentacleSuspicious Looking Tentacle 100% 1
Celestial StarboardCelestial Starboard 100% 1
Moon Lord MaskMoon Lord Mask 14.29% 1
LuminiteLuminite 100% 90-110
Meowmere MinecartMeowmere Minecart 10% 1
Portal GunPortal Gun(when no Portal Gun in inventory) 100% 1
MeowmereMeowmere 22.22% 1
TerrarianTerrarian 22.22% 1
Star WrathStar Wrath 22.22% 1
S.D.M.G.S.D.M.G. 22.22% 1
Celebration Mk2Celebration Mk2 22.22% 1
Last PrismLast Prism 22.22% 1
Lunar FlareLunar Flare 22.22% 1
Rainbow Crystal StaffRainbow Crystal Staff 22.22% 1
Lunar Portal StaffLunar Portal Staff 22.22% 1

Unobtainable and unimplemented types

First Fractal.png
The item(s) or effects described in this section exist as functional game items, but cannot be acquired through normal gameplay.
Treasure Bag (Lunatic Cultist)Lunatic CultistInternal Item ID: 3331
( unobtainable)
Item Chance Amount
Lunatic Cultist MaskLunatic Cultist Mask 14.29% 1
Silver CoinSilver Coin 100% 20

The item(s) or effects described in this section only partially exist in game code and cannot be obtained or used through any means.
Treasure Bag (Dark Mage)Dark MageInternal Item ID: 3862
( unobtainable)
Treasure Bag (Ogre)OgreInternal Item ID: 3861
( unobtainable)

Internal rarity

Each Treasure Bag has an internal rarity, despite being Expert items, which always have a Rarity level: Rainbow rarity.

Developer items

In addition to the above, all Treasure Bags from Hardmode bosses (except Queen Slime's) have a 1/16 (6.25%) chance to contain a random set of developer items, meaning that each set has a 1/288 (0.35%) chance of being in a Hardmode boss Treasure Bag. Obtaining a Treasure Bag in an Expert world, then opening the bag in a Normal world will retain the Treasure Bag's chance to yield developer items.

Red's set
Cenx's set
Cenx's Dress set
Crowno's set
Will's set
Jim's set
Aaron's set
D-Town's set
Lazure's set
Yoraiz0r's set
Skiphs's set
Loki's set
Arkhalis's set
Leinfors' set
Ghostar's set
Safeman's set
FoodBarbarian's set
Grox The Great's set

Expert-exclusive item details

Bag Boss Item Function
Treasure Bag (King Slime).png King Slime Royal GelRoyal Gel Most slimes become friendly and deal no damage to the player.
Treasure Bag (Eye of Cthulhu).png Eye of Cthulhu Shield of CthulhuShield of Cthulhu Double tap the ◀ Left or ▶ Right keys to perform a dash attack, which deals 30 damage and grants momentary invincibility upon hitting enemies.
Treasure Bag (Eater of Worlds).png Eater of Worlds Worm ScarfWorm Scarf Reduces incoming damage taken by 17%.
Treasure Bag (Brain of Cthulhu).png Brain of Cthulhu Brain of ConfusionBrain of Confusion Grants a chance to confuse nearby enemies after being struck and a 1/6 (16.67%) chance to dodge incoming damage, which increases critical strike chance and summon damage by 10% for 4 seconds if successful.
Treasure Bag (Queen Bee).png Queen Bee Hive PackHive Pack Increases the strength of friendly bees by granting a 1/2 (50%) chance to replace them with larger, more damaging ones.
Treasure Bag (Skeletron).png Skeletron Bone GloveBone Glove Throws ricocheting crossbones when the player attacks, dealing 25 damage each.
Treasure Bag (Deerclops).png Deerclops Bone HelmBone Helm Summons homing Shadow Hand projectiles to damage nearby enemies, dealing 18 damage each.
Treasure Bag (Wall of Flesh).png Wall of Flesh Demon HeartDemon Heart Permanently increases the number of accessory slots by one.
Can only be used once. Only usable and takes effect in Expert Mode and Master Mode.
Treasure Bag (Queen Slime).png Queen Slime Volatile GelatinVolatile Gelatin Fires bouncing Volatile Gelatin balls at nearby enemies, dealing 65 damage each.
Treasure Bag (The Destroyer).png The Destroyer Mechanical Wagon PieceMechanical Wagon Piece Used to craft the Minecart Upgrade Kit.
Treasure Bag (The Twins).png The Twins Mechanical Wheel PieceMechanical Wheel Piece Used to craft the Minecart Upgrade Kit.
Treasure Bag (Skeletron Prime).png Skeletron Prime Mechanical Battery PieceMechanical Battery Piece Used to craft the Minecart Upgrade Kit.
Treasure Bag (Plantera).png Plantera Spore SacSpore Sac Summons spores that hover around the player and travel toward nearby enemies before exploding, dealing 400 damage per second and inflicting the Poisoned debuff for 5–10 seconds.
Treasure Bag (Empress of Light).png Empress of Light Soaring InsigniaSoaring Insignia Grants infinite flight time while increasing flight speed, movement speed, acceleration, and jump mobility.
Treasure Bag (Golem).png Golem Shiny StoneShiny Stone Greatly increases health regeneration at an exponential rate from 10 to 40 health per second when not moving.
Treasure Bag (Duke Fishron).png Duke Fishron Shrimpy TruffleShrimpy Truffle Summons a mount with infinite flight time and gains a significant movement speed bonus when submerged in liquid or when the rider is below half health.
Treasure Bag (Moon Lord).png Moon Lord Gravity GlobeGravity Globe Allows the holder to reverse gravity, which can be toggled in midair.
Suspicious Looking TentacleSuspicious Looking Tentacle Summons a light pet that detects nearby enemies, treasure, and ores.
Celestial StarboardCelestial Starboard A wing that allows hovering and quick upward ascension.


  • In singleplayer, a Treasure Bag is always dropped when a boss is defeated, regardless of how the player defeated the boss.
  • In multiplayer, the Treasure Bag drop is determined per player. Whether the Treasure Bag is dropped for a player is based on whether they dealt damage to the boss. Players who did not deal at least 1 point of damage to the boss will not receive a Treasure Bag.
    • Additionally, damage dealt by NPCs' attacks, Explosive Bunnies, traps, Explosives, and lava is not accounted for any player. For example, if there is only one player in the server, and they only use said damaging methods to kill a boss, a Treasure Bag will not be dropped.
    • However, damaging items that involve player interaction, such as Bombs, Cannons, Inferno Potions, Spore Sac, etc., will count as player-dealt damage.
  • Loot yields are considerably higher in multiplayer – multiple bags are handed out, with each containing the entire reward of a kill, thus the drop rates of the boss's unique items will be increased.
  • Trophies are not obtained from Treasure Bags. Instead, they are dropped separately from the boss itself, and will only drop one at a time in multiplayer.
  • The Eater of Worlds' and Brain of Cthulhu's Treasure Bags contain items that are dropped in larger quantities in Master Mode. This is checked when the bag is opened, not when it is dropped.[1] For example, bringing one of these Treasure Bags from an Expert world to a Master world and opening it there will yield these larger quantities. The same applies to setting the Enemy Difficulty Slider to Expert before defeating the boss, then to Master before opening the Treasure Bag.
  • In a Celebrationmk10 world, the drop rate of developer items is increased from 1/16 (6.25%) to 1/8 (12.5%).


  • In multiplayer, it is advisable to open Treasure Bags in a quiet area if the player has a full inventory, as the delay in item pickup can cause items to be picked up by other players.


  • In multiplayer, if player A disconnects from the server after dealing damage to a boss, the next player who connects to the server (player A themselves, or another player) will get the "qualification" for dropping the Treasure Bag. For example, if player A reconnects after player B has already connected, and A does not deal damage to the boss afterward, player A will not be able to get the Treasure Bag, while player B can get a Treasure Bag even if they did not deal damage to the boss.
  • The Moon Lord's Treasure Bag is the only one to include multiple Expert Mode items.
  • Betsy's Treasure Bag is the only obtainable bag that does not contain an Expert Mode item. It also does not contain coins, but contains Defender Medals instead.
  • The Lunatic Cultist, Ogre, and Dark Mage have sprites for a Treasure Bag, even though they do not drop one.
    • The Lunatic Cultist is the sole progression-mandatory boss to not drop a Treasure Bag.
    • Unlike the Lunatic Cultist's Treasure Bag, the Ogre and Dark Mage do not have data assigned to their Treasure Bags, as attempting to hack in either one will cause them to disappear from the player's inventory instantly. If the game is hacked to prevent them from disappearing, their names are displayed as "ItemName.BossBagOgre" and "ItemName.BossBageDarkMage" and they disappear, dropping nothing when opened.
      • Interestingly, the internal rarity given to the Dark Mage's and Ogre's Treasure Bags appear to conflict with their actual progression order; the Ogre's has a rarity of Rarity level: 3, the same as later pre-Hardmode bosses' Treasure Bags, whereas the Dark Mage's has a rarity of Rarity level: 5, the same as the mechanical bosses' Treasure Bags.
  • Queen Slime's Treasure Bag is the only Hardmode Treasure Bag to not drop developer items.
  • Treasure Bags are referred to as BossBag in their internal names.


  • Desktop 1.4.4:
    • Chance of getting a developer set increased from 1/20 to 1/16.
    • Increased the number of Shadow Scales in the Eater of Worlds' Treasure Bag from 10–19 to 20–40. Added an even higher amount in Master Mode: 30–50 Shadow Scales.
    • Increased the amount of Demonite Ore in the Eater of Worlds' Treasure Bag from 30–59 to 80–110. Added an even higher amount in Master Mode: 110–135 Demonite Ore.
    • Increased the number of Tissue Samples in the Brain of Cthulhu's Treasure Bag from 10–19 to 20–40. Added an even higher amount in Master Mode: 30–50 Tissue Samples.
    • Increased the amount of Crimtane Ore in the Brain of Cthulhu's Treasure Bag from 40–90 to 80–110. Added an even higher amount in Master Mode: 110–135 Crimtane Ore.
  • Desktop 1.4.3:
    • Added Deerclops' Treasure Bag.
    • All Treasure Bags now display the name of their related boss in parentheses (instead of only "Treasure Bag").
  • Desktop
    • Dropped Treasure Bags now have a special light effect around to highlight them.
    • Added Queen Slime and Empress of Light's Treasure Bags.
    • Sprites updated. Old sprites: Treasure Bag (King Slime) (old).png Treasure Bag (Eye of Cthulhu) (old).png Treasure Bag (Eater of Worlds) (old).png Treasure Bag (Brain of Cthulhu) (old).png Treasure Bag (Queen Bee) (old).png Treasure Bag (Skeletron) (old).png Treasure Bag (Wall of Flesh) (old).png Treasure Bag (The Destroyer) (old).png Treasure Bag (The Twins) (old).png Treasure Bag (Skeletron Prime) (old).png Treasure Bag (Plantera) (old).png Treasure Bag (Golem) (old).png Treasure Bag (Duke Fishron) (old).png Treasure Bag (Lunatic Cultist) (old).png Treasure Bag (Moon Lord) (old).png
    • Added Ghostar, Safeman, FoodBarbarian and Grox the Great's sets to the drop pool.
    • Added Celestial Starboard to Moon Lord's Treasure Bag.
    • Added Arkhalis to Arkhalis' set.
  • Desktop Fixed Betsy's Treasure Bag having an incorrect name (was "ItemName.BossBagBetsy").


  1. Information taken from the Desktop version Desktop source code, method OpenBossBag() in Terraria.Player.cs.