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Item icon
Item altar
"Double item vision"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Recharge Time
One time use One time use
Item Pool
Normal and hard modes only Shop Shop
Table dividing line 3.png
Collection Grid
Removed in Repentance(page 3, column 2, row 6)
Added in Repentance(page 3, column 3, row 6)
Added in Afterbirth

Diplopia is an activated item added in The Binding of Isaac: Afterbirth.

Effect[edit | edit source]

  • Duplicates all pickups and pedestal items in the current room, then disappears.

Notes[edit | edit source]

  • Using Diplopia on a trinket will spawn another random trinket instead of duplicating the trinket.
  • Using Diplopia on an empty item pedestal will spawn another random item.
    • Added in Afterbirth † Diplopia no longer spawns extra items for empty item pedestals.
  • If used in a Shop, the duplicated pickups and items can be taken for free.
  • If used in the Boss Rush room, all available items will be duplicated and all the duplicates can be taken (this will still start the Boss Rush); however, only one of the original items may be taken. Taking one of the original items does not cause the duplicates to disappear.
    • Added in RepentanceOnly one duplicate can be taken
  • If used on the 15►The Polaroid The Polaroid and 15►The Negative The Negative after defeating Mom, the duplicates can be taken without affecting the originals.
    • Added in RepentanceOnly one duplicate can be taken
  • If used in a Devil Room or the Black Market, the duplicated items can be taken for free. The original items will still be offered at an HP price, and Deal with the Devil precedent will not be obtained.
  • If used in an Angel Room that has multiple item pedestals, the duplicated items can be taken for free. The original items will still behave as normal: once an item is chosen, the others will disappear.
  • Picking up multiple copies of items that can cause Isaac to transform will not count towards transformation progress.
  • Using Diplopia on another copy of Diplopia will not work.
  • Added in RepentanceJacob and Esau can use this item to duplicate an active item to each have the same active item.

Synergies[edit | edit source]

  • 15►20/20 20/20: Isaac fires 4 tightly-packed tears with no increase in tear delay.
  • 15►Brimstone Brimstone: Isaac fires two lasers simultaneously.
    • Added in Repentance Isaac gains a powered-up version of Brimstone.
  • 15►Contract From Below Contract From Below: Triples the drops upon clearing a room.
  • 15►Dr. Fetus Dr. Fetus: Isaac fires two bombs simultaneously.
  • 15►Eden's Blessing Eden's Blessing: Tears upgrades stack and Isaac gains two items at the start of the next run.
  • 15►Epic Fetus Epic Fetus: Two missiles drop, one after the other.
  • 15►The Inner Eye The Inner Eye: Isaac fires 6 tears. Tears down stat does not stack.
  • 15►The Ludovico Technique The Ludovico Technique: A smaller tear orbits the main tear.
  • 15►Maw of the Void Maw of the Void: Increase damage for tears and ring.
  • 15►Mom's Knife Mom's Knife: Isaac fires two knives simultaneously.
  • 15►Monstro's Lung Monstro's Lung: The tear burst gains another 10 tears, nearly doubling in size.
  • 15►Mutant Spider Mutant Spider: Isaac fires 8 tears. Tears down stat does not stack.
  • 15►Piggy Bank Piggy Bank: Only grants 3 more coins. Does not drop more pennies when taking damage.
  • Added in Afterbirth †15►Schoolbag Schoolbag + any active item: While there is no use in duplicating the Schoolbag, it gives Isaac a use for duplicating an active item.
  • 15►Steam Sale Steam Sale: All items in Shops become free. With 15►Restock Restock, items can be infinitely bought for free.
    • Added in Repentance This no longer works, as the prices now compound instead of subtracting.
  • 15►Technology Technology: Isaac fires two lasers simultaneously.
  • 15►Tech X Tech X: Isaac fires two laser rings simultaneously.
  • 15►The Wiz The Wiz: Isaac fires 4 tears diagonally.
    • Added in Afterbirth † Isaac fires 3 tears, one straight ahead and two diagonally.

Interactions[edit | edit source]

  • Added in Afterbirth †15►Belly Button Belly Button/15►Mom's Purse Mom's Purse: Does not allow more than two trinkets to be held at once.
  • Removed in Repentance ? Card ? Card: Expends both the card and the item with no additional benefit.
    • Added in Repentance Now expends the card without consuming Diplopia, allowing for potential multiple uses.
      • If 2 ? Cards are gathered in the same room, one can be used to duplicate the other, allowing for infinite duplication of everything else in that room.
  • Added in Afterbirth †15►Compound Fracture Compound Fracture: Range increases twice. No effect on how many bone tears are fired, how many bone shards are fired, or tear height.
  • 15►Continuum Continuum: Only increases range further.
  • 15►Crown of Light Crown of Light: Only further decreases shot speed and increases range.
  • 15►Dead Eye Dead Eye: The damage multiplier increases twice as fast, but still caps at double damage.
  • 15►Deep Pockets Deep Pockets/Added in Afterbirth †15►Polydactyly Polydactyly/15►Starter Deck Starter Deck/15►Little Baggy Little Baggy: Does not allow more than two pills or cards to be held at once.
  • 15►Eve's Mascara Eve's Mascara: The damage and tear multipliers do not stack. The shot speed does stack.
  • Added in Afterbirth †15►Eye of Belial Eye of Belial: Only further increases range.
  • Added in Afterbirth †15►Finger! Finger!: Spawns two familiars completely overlapping each other.
  • 15►Godhead Godhead: Only stat ups and downs compound, but the aura gains no bonus.
  • 15►Guillotine Guillotine: Isaac will have two orbital heads, but only one will fire tears.
  • Added in Afterbirth †15►Haemolacria Haemolacria: No effect.
  • 15►Holy Mantle Holy Mantle: An extra effect is added in the room it was found in, but only a single effect will be given in future rooms.
  • 15►Iron Bar Iron Bar: Increases damage but not chance of concussive tears being fired.
  • 15►Key Piece 1 Key Piece 1, 15►Key Piece 2 Key Piece 2: Spawns a copy of the same Key Piece.
  • 15►Kidney Stone Kidney Stone: Only further decreases speed.
  • 15►Lost Contact Lost Contact: Only further decreases shot speed.
  • 15►Magic Mushroom Magic Mushroom: Increases all stats twice, but damage significantly less the second time as the 1.5x multipliers do not stack.
  • 15►Marked Marked: Only increases range and firerate.
  • 15►Mom's Contacts Mom's Contacts: Only increases range.
  • 15►My Reflection My Reflection: Only increases range.
  • 15►Placenta Placenta: Only increases HP with no change to the regeneration effect.
  • Added in Afterbirth †15►Pointy Rib Pointy Rib: Spawns two familiars that completely overlap each other.
  • 15►Purity Purity: No effect. Aura Changes after a second Pickup.
  • 15►Sacred Heart Sacred Heart: Further decreases tears and shot speed with no increase in damage.
  • Added in Afterbirth †15►Sulfuric Acid Sulfuric Acid: Only further increases damage.
  • 15►Tractor Beam Tractor Beam: Further increases shot speed, fire rate, and range with no other effects.

No Effect[edit | edit source]

In-game Footage[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

  • This is the first Afterbirth item by ID number.
  • Diplopia is the simultaneous perception of two images of a single object, commonly referred to as double vision.
  • This item's icon is similar to 15►Pupula Duplex Pupula Duplex.

Seeds[edit | edit source]

PC Hard mode only 71A9 QSS2 (First floor Shop)

PC Normal and hard modes only HK2C L3NZ (First floor Shop)

PC 8SGX HRFT (First floor Shop)

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