Binding of Isaac: Rebirth Wiki
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Added in Repentance

Bag of Crafting is an unlockable activated item added in The Binding of Isaac: Repentance.

Effects[]

  • Upon use, pressing an attack direction will cause a swipe attack with high knockback and 3 damage.
    • The swipe scales in size with Isaac's size.
    • The swipe will appear further from Isaac the higher his range is.
    • The swipe can be used to open Spiked Chest Spiked Chests and Mimic Chest Mimic Chests without taking damage.
    • The swipe can be used to block bullets.
  • Swiping a pickup on the floor will add it to the bag. The bag's contents cannot be dropped. Up to 8 pickups can be stored.
    • Double pickups like Double Hearts will add two copies to the bag. Blended hearts will add one red heart and one soul heart.
    • Sticky nickels can't be picked up unless unstuck.
    • Chests and sacks can't be picked up, but can be opened with a swipe even behind obstacles.
    • If Isaac has enough money to buy a pickup from a Shop Shop, using Bag of Crafting on that pickup will purchase it and automatically add it to the bag.
  • Once 8 pickups are held in the bag, the bag can be used once more to spawn an item pedestal.
    • If a recipe would result in an item that hasn't yet been unlocked, a random item will be crafted instead.
  • There are a total of 29 different types of consumables that can be placed in the bag. The ordering does not matter for the outcome.

As Tainted Cain Tainted Cain:

  • If pickups are collected after the max of 8 is reached, the contents shift left and up, deleting the top left slot and adding at the bottom right. Tapping the switch key cycles the bag's contents left and up in a loop, making it possible to choose which pickup to overwrite.
  • Once 8 pickups are held in the bag, the bag will show a preview what would be crafted. Holding down the Use Pill/Card button will craft the item and place it directly in Tainted Cain's inventory.
    • Crafting an activated item while already holding one will turn the old one into pickups like collecting it would.
    • Curse of the Blind.png Curse of the Blind hides the crafting preview.

Component Types and Qualities[]

Bag of Crafting UI symbols.png
The cumulative quality of the components impacts the quality of the item received. The pickups belonging to each component type and their qualities are listed as below. The item received can be from the Treasure Room item pool (1× chance), Shop item pool (2× chance), Boss Room item pool (2× chance), or one of the pools listed in the table below. The pools in the table below require at least 1 of the corresponding component. For example, Devil Room items require at least 1 Black Heart Black Heart.

If the recipe chooses an item from Devil, Angel, or Secret Room pools, the total component quality is lowered by 5 before the resulting item quality, and consequently the resulting item, is determined.

Name Quality Notes
Poop Nugget Poop Nugget 0 Adds a chance of getting a Shell Game item. The chance increases by 10× per component.
Penny Penny 1
Red Heart Red Heart (full, half, or scared) 1
Rotten Heart Rotten Heart 1 Adds a chance of getting a Curse Room item. The chance increases by 10× per component.
Bomb Bomb 2
TarotCard.png Card 2
Cracked Key Cracked Key 2 Adds a chance of getting a Red Chest item. The chance increases by 10× per component.
Key Key 2
Micro Battery Micro Battery 2
Pill Black White.png Pill 2
Nickel Nickel (regular and sticky) 3
Dice Shard Dice Shard 4
Lil' Battery Lil' Battery 4
Rune1.png Rune (includes Soul Stones) 4 Adds chance of getting a Planetarium item if the bag doesn't contain a Penny Penny, Bomb Bomb, Key Key, or Red Heart Red Heart. The chance increases by 10× per component.
Soul Heart Soul Heart (full or half) 4
Black Heart Black Heart 5 Adds a chance of getting a Devil Room item. The chance increases by 10× per component.
Bone Heart Bone Heart 5 Adds a chance of getting a Secret Room item. The chance increases by 5× per component.
Charged Key Charged Key 5
Dime Dime 5
Eternal Heart Eternal Heart 5 Adds a chance of getting an Angel Room item. The chance increases by 10× per component.
Gold Heart Gold Heart 5 Adds a chance of getting a Golden Chest item. The chance increases by 10× per component.
Golden Battery Golden Battery 7
Golden Bomb Golden Bomb 7
Golden Key Golden Key 7
Golden Penny Golden Penny 7
Golden Pill icon.png Golden Pill 7
Lucky Penny Lucky Penny 8
Mega Battery Mega Battery 8
Giga Bomb Giga Bomb 10
Total Components Quality Resulting Item Quality Range
Special pools Other pools
40+ 35+ 4-4
32-39 27-34 3-4
28-31 23-26 2-4
24-27 19-22 2-3
20-23 15-18 1-2
14-19 9-14 0-2
0-13 0-8 0-1
  • 'Special Pools' are defined for this chart as Angel Room, Devil Room, and Secret Room item pools.

Interactions[]

  • Car Battery Car Battery: No effect.
  • Wild Card Wild Card: Holding up Bag of Crafting counts as an active item use for Wild Card, and can be replicated.
  • Void Void/Abyss Abyss: Can be used in conjunction with Bag of Crafting to gain a large amount of stat boosts or locusts, respectively.

Recipes[]

Bag of Crafting's recipes are based on seed, but there are some fixed recipes that exist in every run. [1] These items need to be unlocked to be crafted.

Pickups Items
Poop Nugget (29) Poop Nugget (29) Poop Nugget (29) Poop Nugget (29)
Poop Nugget (29) Poop Nugget (29) Poop Nugget (29) Poop Nugget (29)
The Poop The Poop
Penny (8) Penny (8) Penny (8) Penny (8)
Penny (8) Penny (8) Penny (8) Penny (8)
Portable Slot Portable Slot
Red Heart (1) Red Heart (1) Red Heart (1) Red Heart (1)
Red Heart (1) Red Heart (1) Red Heart (1) Red Heart (1)
Yum Heart Yum Heart
Soul Heart (2) Soul Heart (2) Soul Heart (2) Soul Heart (2)
Soul Heart (2) Soul Heart (2) Soul Heart (2) Soul Heart (2)
Soul Locket Soul Locket
Black Heart (3) Black Heart (3) Black Heart (3) Black Heart (3)
Black Heart (3) Black Heart (3) Black Heart (3) Black Heart (3)
Brimstone Brimstone
Key (12) Key (12) Key (12) Key (12)
Key (12) Key (12) Key (12) Key (12)
Latch Key Latch Key
Bomb (15) Bomb (15) Bomb (15) Bomb (15)
Bomb (15) Bomb (15) Bomb (15) Bomb (15)
Mr. Boom Mr. Boom
Card (21) Card (21) Card (21) Card (21)
Card (21) Card (21) Card (21) Card (21)
Deck of Cards Deck of Cards
Golden Heart (5) Soul Heart (2) Red Heart (1) Eternal Heart (4)
Eternal Heart (4) Eternal Heart (4) Eternal Heart (4) Eternal Heart (4)
Godhead Godhead
Eternal Heart (4) Eternal Heart (4) Eternal Heart (4) Eternal Heart (4)
Eternal Heart (4) Eternal Heart (4) Eternal Heart (4) Eternal Heart (4)
Sacred Heart Sacred Heart
Pill (22) Pill (22) Pill (22) Pill (22)
Pill (22) Pill (22) Pill (22) Pill (22)
PHD PHD
Black Heart (3) Pill (22) Pill (22) Pill (22)
Pill (22) Pill (22) Pill (22) Pill (22)
False PHD False PHD
Rotten Heart (7) Rotten Heart (7) Red Heart (1) Red Heart (1)
Red Heart (1) Red Heart (1) Red Heart (1) Red Heart (1)
Yuck Heart Yuck Heart
Golden Key (13) Golden Key (13) Key (12) Key (12)
Key (12) Key (12) Key (12) Key (12)
Dad's Key Dad's Key
Giga Bomb (17) Giga Bomb (17) Giga Bomb (17) Giga Bomb (17)
Giga Bomb (17) Giga Bomb (17) Giga Bomb (17) Giga Bomb (17)
Mama Mega! Mama Mega!
Golden Bomb (16) Golden Bomb (16) Bomb (15) Bomb (15)
Bomb (15) Bomb (15) Bomb (15) Bomb (15)
Bone Heart (6) Bone Heart (6) Bone Heart (6) Bone Heart (6)
Bone Heart (6) Bone Heart (6) Bone Heart (6) Bone Heart (6)
Death Certificate Death Certificate
Dice Shard (24) Dice Shard (24) Dice Shard (24) Dice Shard (24)
Dice Shard (24) Dice Shard (24) Dice Shard (24) Dice Shard (24)
D Infinity D Infinity
Cracked Key (25) Cracked Key (25) Cracked Key (25) Cracked Key (25)
Cracked Key (25) Cracked Key (25) Cracked Key (25) Cracked Key (25)
Red Key Red Key

Uncraftable Items[]

These items have no recipes and cannot be crafted using the Bag of Crafting.[Check ingame]

In-game Footage[]

Trivia[]

  • There are , or about 30.3 million, combinations of pickups and consumables that can be used in the Bag of Crafting. The item chosen is based on a formula mapping the chosen consumables, item weights, and quality values into a single outcome. On average, about 1/4th of all items will represent over 1/2 of all recipes.
    • Bag of Crafting can craft itself, which allows Tainted Cain Tainted Cain (or a character with Schoolbag Schoolbag) to hold two at once.
  • The average consumable value is ~4.31.
  • Bag of Crafting's item description hints to The D6 The D6's item description as well as Tainted Cain Tainted Cain's description, implying that "Destiny" is the items that will appear in a given seed.
Bug Bug! After using Glowing Hour Glass Glowing Hour Glass to revert the bag state, result preview shows nothing.
Bug Bug! If Tainted Cain Tainted Cain dies in the exit of the Mines Mines / Ashpit Ashpit II Knife Piece 2 Knife Piece 2 area in multiplayer mode and then gets revived, Bag of crafting will remain inactive, making it impossible for Tainted Cain to obtain any more items.
Bug Bug! Swinging Bag of Crafting while holding Evil Eye Evil Eye may create evil eye tears in the direction fired. Upon pressing the fire buttons, these tears will create a swing identical to that of the Bag of Crafting, even removing pickups caught in the swing. Pickups removed this way will NOT be added to the bag.

References[]

  1. Fixed recipes are defined in recipes.xml.


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