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 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 12*
rarity, with the exception of developer items, which have the 09*
rarity.
Types
Unobtainable and unimplemented types
Unobtainable The item(s) or effects described
in this section exist as functional game items, but cannot be acquired through normal gameplay.
Unimplemented The item(s) or effects described in this section only partially exist in game code and cannot be obtained or used through any means.
Internal rarity
Each Treasure Bag has an internal rarity, despite being Expert items, which always have a 12*
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.
Expert-exclusive item details
Bag |
Boss |
Item |
Function
|
 |
King Slime |
Royal Gel |
Most slimes become friendly and deal no damage to the player.
|
 |
Eye of Cthulhu |
Shield 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.
|
 |
Eater of Worlds |
Worm Scarf |
Reduces incoming damage taken by 17%.
|
 |
Brain of Cthulhu |
Brain 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.
|
 |
Queen Bee |
Hive Pack |
Increases the strength of friendly bees by granting a 1/2 (50%) chance to replace them with larger, more damaging ones.
|
 |
Skeletron |
Bone Glove |
Throws ricocheting crossbones when the player attacks, dealing 25 damage each.
|
 |
Deerclops |
Bone Helm |
Summons homing Shadow Hand projectiles to damage nearby enemies, dealing 18 damage each.
|
 |
Wall of Flesh |
Demon 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.
|
 |
Queen Slime |
Volatile Gelatin |
Fires bouncing Volatile Gelatin balls at nearby enemies, dealing 65 damage each.
|
 |
The Destroyer |
Mechanical Wagon Piece |
Used to craft the Minecart Upgrade Kit.
|
 |
The Twins |
Mechanical Wheel Piece |
Used to craft the Minecart Upgrade Kit.
|
 |
Skeletron Prime |
Mechanical Battery Piece |
Used to craft the Minecart Upgrade Kit.
|
 |
Plantera |
Spore Sac |
Summons spores that hover around the player and travel toward nearby enemies before exploding, dealing 70 damage and inflicting the Poisoned debuff for 5–10 seconds.
|
 |
Empress of Light |
Soaring Insignia |
Grants infinite flight time while increasing flight speed, movement speed, acceleration, and jump mobility.
|
 |
Golem |
Shiny Stone |
Greatly increases health regeneration at an exponential rate from 10 to 40 health per second while not moving.
|
 |
Duke Fishron |
Shrimpy 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.
|
 |
Moon Lord |
Gravity Globe |
Allows the holder to reverse gravity, which can be toggled in midair.
|
Suspicious Looking Tentacle |
Summons a light pet that detects nearby enemies, treasure, and ores.
|
Celestial Starboard |
A wing that allows hovering and quick upward ascension.
|
Notes
- 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%).
Tips
- 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.
Trivia
- 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
03*
, the same as later pre-Hardmode bosses' Treasure Bags, whereas the Dark Mage's has a rarity of 05*
, 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.
History
- 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 1.4.0.1:
- 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:

- 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 1.3.5.1: Fixed Betsy's Treasure Bag having an incorrect name (was "ItemName.BossBagBetsy").
References
- ↑ Information taken from the
Desktop 1.4.4.9 source code, method OpenBossBag()
in Terraria.Player.cs
.
Treasure Bags(Desktop, Console and Mobile versions)
Royal Gel(Desktop, Console and Mobile versions)
Shield of Cthulhu(Desktop, Console and Mobile versions)
Worm Scarf(Desktop, Console and Mobile versions)
Brain of Confusion(Desktop, Console and Mobile versions)
Hive Pack(Desktop, Console and Mobile versions)
Bone Glove(Desktop, Console and Mobile versions)
Bone Helm(Desktop, Console and Mobile versions)
Demon Heart(Desktop, Console and Mobile versions)
Volatile Gelatin(Desktop, Console and Mobile versions)
Minecart Upgrade Kit(Desktop, Console and Mobile versions)
Spore Sac(Desktop, Console and Mobile versions)
Witch's Broom(Desktop, Console and Mobile versions)
Shiny Stone(Desktop, Console and Mobile versions)
Shrimpy Truffle(Desktop, Console and Mobile versions)
Soaring Insignia(Desktop, Console and Mobile versions)
Gravity Globe(Desktop, Console and Mobile versions)
Suspicious Looking Tentacle(Desktop, Console and Mobile versions)
Celestial Starboard(Desktop, Console and Mobile versions)
Luck
(Desktop, Console and Mobile versions)
- Greater Luck(Desktop, Console and Mobile versions)
- Luck(Desktop, Console and Mobile versions)
- Lesser Luck(Desktop, Console and Mobile versions)
- Builder(Desktop, Console, Old-gen console and Mobile versions)
- Love(Desktop, Console, Old-gen console and Mobile versions)
- Mining(Desktop, Console, Old-gen console and Mobile versions)
- Red(Desktop, Console and Mobile versions)
- Stink
- Ale
- Apple Pie(Desktop, Console and Mobile versions)
- Bacon(Desktop, Console and Mobile versions)
- Banana Split(Desktop, Console and Mobile versions)
- BBQ Ribs(Desktop, Console and Mobile versions)
- Bowl of Soup
- Bunny Stew(Desktop, Console and Mobile versions)
- Burger(Desktop, Console and Mobile versions)
- Carton of Milk(Desktop, Console and Mobile versions)
- Chicken Nugget(Desktop, Console and Mobile versions)
- Chocolate Chip Cookie(Desktop, Console and Mobile versions)
- Christmas Pudding(Desktop, Console, Old-gen console and Mobile versions)
- Coffee(Desktop, Console and Mobile versions)
- Cooked Marshmallow
- Cream Soda(Desktop, Console and Mobile versions)
- Escargot(Desktop, Console and Mobile versions)
- Fishing foods
- Fried Egg(Desktop, Console and Mobile versions)
- Fries(Desktop, Console and Mobile versions)
- Froggle Bunwich(Desktop, Console and Mobile versions)
- Fruits(Desktop, Console and Mobile versions)
- Gingerbread Cookie(Desktop, Console, Old-gen console and Mobile versions)
- Golden Delight(Desktop, Console and Mobile versions)
- Grapes(Desktop, Console and Mobile versions)
- Grape Juice(Desktop, Console and Mobile versions)
- Grilled Squirrel(Desktop, Console and Mobile versions)
- Grub Soup(Desktop, Console and Mobile versions)
- Hotdog(Desktop, Console and Mobile versions)
- Ice Cream(Desktop, Console and Mobile versions)
- Joja Cola(Desktop, Console and Mobile versions)
- Milkshake(Desktop, Console and Mobile versions)
- Monster Lasagna(Desktop, Console and Mobile versions)
- Nachos(Desktop, Console and Mobile versions)
- Pad Thai(Desktop, Console, Old-gen console and Mobile versions)
- Pizza(Desktop, Console and Mobile versions)
- Pho(Desktop, Console, Old-gen console and Mobile versions)
- Potato Chips(Desktop, Console and Mobile versions)
- Pumpkin Pie
- Roasted Bird(Desktop, Console and Mobile versions)
- Roasted Duck(Desktop, Console and Mobile versions)
- Sake(Desktop, Console, Old-gen console and Mobile versions)
- Sauteed Frog Legs(Desktop, Console and Mobile versions)
- Shrimp Po' Boy(Desktop, Console and Mobile versions)
- Shucked Oyster(Desktop, Console and Mobile versions)
- Spaghetti(Desktop, Console and Mobile versions)
- Steak(Desktop, Console and Mobile versions)
- Sugar Cookie(Desktop, Console, Old-gen console and Mobile versions)
- Teacup(Desktop, Console and Mobile versions)
- Snowball
- Rotten Egg
- Shuriken
- Grenade
- Sticky(Desktop, Console, Old-gen console and Mobile versions)
- Bouncy(Desktop, Console and Mobile versions)
- Happy(Desktop, Console and Mobile versions)
- Beenade
- Throwing Knife
- Star Anise(Desktop, Console, Old-gen console and Mobile versions)
- Spiky Ball
- Frost Daggerfish(Desktop, Console and Mobile versions)
- Javelin(Desktop, Console and Mobile versions)
- Bone(Desktop, Console and Mobile versions)
- Bone
- Molotov Cocktail(Desktop, Console, Old-gen console and Mobile versions)
Dye
(Desktop, Console, Old-gen console and Mobile versions)
- Red(Desktop, Console, Old-gen console and Mobile versions)
- Orange
- Yellow
- Lime
- Green
- Teal
- Cyan(Desktop, Console, Old-gen console and Mobile versions)
- Sky Blue
- Blue
- Purple(Desktop, Console, Old-gen console and Mobile versions)
- Violet(Desktop, Console, Old-gen console and Mobile versions)
- Pink
- Black(Desktop, Console, Old-gen console and Mobile versions)
- Ancient Cloth(Desktop, Console and Mobile versions)
- Beetle Husk
- Broken Hero Sword
- Cursed Flame
- Ectoplasm
- Forbidden Fragment(Desktop, Console and Mobile versions)
- Frost Core(Desktop, Console, Old-gen console and Mobile versions)
- Light Shard
- Mechanical Pieces
- Battery(Desktop, Console and Mobile versions)
- Wagon(Desktop, Console and Mobile versions)
- Wheel(Desktop, Console and Mobile versions)
- Pixie Dust
- Spider Fang(Desktop, Console, Old-gen console and Mobile versions)
- Solar Tablet Fragment(Desktop, Console and Mobile versions)
- Spooky Wood
- Turtle Shell
- Unicorn Horn
- Solar(Desktop, Console and Mobile versions)
- Vortex(Desktop, Console and Mobile versions)
- Nebula(Desktop, Console and Mobile versions)
- Stardust(Desktop, Console and Mobile versions)
- Wooden
- Iron
- Golden
- Jungle(Desktop, Console and Mobile versions)
- Sky(Desktop, Console and Mobile versions)
- Corrupt(Desktop, Console and Mobile versions)
- Crimson(Desktop, Console and Mobile versions)
- Hallowed(Desktop, Console and Mobile versions)
- Dungeon(Desktop, Console and Mobile versions)
- Frozen(Desktop, Console and Mobile versions)
- Oasis(Desktop, Console and Mobile versions)
- Obsidian(Desktop, Console and Mobile versions)
- Ocean(Desktop, Console and Mobile versions)
- Pearlwood(Desktop, Console and Mobile versions)
- Mythril(Desktop, Console and Mobile versions)
- Titanium(Desktop, Console and Mobile versions)
- Bramble(Desktop, Console and Mobile versions)
- Azure(Desktop, Console and Mobile versions)
- Defiled(Desktop, Console and Mobile versions)
- Hematic(Desktop, Console and Mobile versions)
- Divine(Desktop, Console and Mobile versions)
- Stockade(Desktop, Console and Mobile versions)
- Boreal(Desktop, Console and Mobile versions)
- Mirage(Desktop, Console and Mobile versions)
- Hellstone(Desktop, Console and Mobile versions)
- Seaside(Desktop, Console and Mobile versions)
- Life Crystal
- Life Fruit
- Mana Crystal
- Demon Heart(Desktop, Console and Mobile versions)
- Peddler's Satchel(Desktop, Console and Mobile versions)
- Advanced Combat Techniques(Desktop, Console and Mobile versions)
- Advanced Combat Techniques: Volume Two(Desktop, Console and Mobile versions)
- Minecart Upgrade Kit(Desktop, Console and Mobile versions)
- Artisan Loaf(Desktop, Console and Mobile versions)
- Torch God's Favor(Desktop, Console and Mobile versions)
- Vital Crystal(Desktop, Console and Mobile versions)
- Arcane Crystal(Desktop, Console and Mobile versions)
- Aegis Fruit(Desktop, Console and Mobile versions)
- Ambrosia(Desktop, Console and Mobile versions)
- Galaxy Pearl(Desktop, Console and Mobile versions)
- Gummy Worm(Desktop, Console and Mobile versions)
- Coins
- Defender Medal(Desktop, Console and Mobile versions)
- Bait
- Etherian Mana(Desktop, Console and Mobile versions)
- Paints(Desktop, Console, Old-gen console and Mobile versions)
- Wire
- Ropes
- Rope Coils
- Silk(Desktop, Console and Mobile versions)
- Vine(Desktop, Console and Mobile versions)
- Web(Desktop, Console and Mobile versions)
- Marshmallow on a Stick
- Glowstick
- Sticky
- Bouncy(Desktop, Console and Mobile versions)
- Spelunker(Desktop, Console and Mobile versions)
- Fairy(Desktop, Console and Mobile versions)
- Vile Powder
- Vicious Powder(Desktop, Console and Mobile versions)
- Purification Powder
- Smoke Bomb
- Sparkle Slime Balloon(Desktop, Console and Mobile versions)
- Confetti Gun
- Bunny License(Desktop, Console and Mobile versions)
- Cat(Desktop, Console and Mobile versions)
- Dog(Desktop, Console and Mobile versions)
- Chum Bucket(Desktop, Console and Mobile versions)
- Fertilizer(Desktop, Console and Mobile versions)
- Geode(Desktop, Console and Mobile versions)
- Chest Lock(Desktop, Console and Mobile versions)
- World Globe(Desktop, Console and Mobile versions)
- Tree Globe(Desktop, Console and Mobile versions)
- Moon Globe(Desktop, Console and Mobile versions)
- Gas Trap(Desktop, Console and Mobile versions)