Diplopia

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(except in Rebirth)

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

Effect

  • Upon use, duplicates all pickups and pedestal items in the current room, then disappears.

Notes

  • If used in a ShopShop, the duplicated pickups and items can be taken for free.
  • If used in a Devil RoomDevil Room or the Black MarketBlack 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 an item pedestal that is duplicated is visible as "?" (for example with the Curse of the Blind.pngCurse of the Blind), duplicate will be visible as "?" until taken, just like the original item pedestal.
  • Using Diplopia on another copy of Diplopia will not work.
  • (except in Repentance) Using Diplopia on a trinket will spawn another random trinket instead of duplicating the trinket.
    • (in Repentance) Using Diplopia on a trinket does nothing.
  • (in Repentance) Does not duplicate Rune of JeraRune of Jera.
  • (in Rebirth and Afterbirth) Using Diplopia on an empty item pedestal will spawn another random item.
  • (except in Repentance) Picking up multiple copies of items that can cause Isaac to transform will not count towards transformation progress.
    • (in Repentance) Multiple copies of the same item do count towards transformations.
  • (except in Repentance) If Diplopia is used in a room that offers a choice between multiple items, all of the duplicated items can be taken. The original items will still behave as normal: once an item is chosen, the others will disappear, but the duplicates will remain. This also includes Boss RushBoss Rush (though taking any duplicate will still start the Boss Rush)
  • Character Jacob and Esau icon.pngJacob and Esau can use this item to duplicate an active item to each have the same active item.
  • Tear-boosting items, if stacked, cap at shooting 16 tears at once.

Synergies

  • Collectible 20 20 icon.png20/20: Isaac fires 3 tightly-packed tears with no increase in tear delay.
    • (in Repentance) Damage down does not stack.
  • (in Repentance)Collectible Book of Virtues icon.pngBook of Virtues: Spawns a special Diplopia wisp on the middle ring. The wisp fires two tears at a time (similar to Collectible 20 20 icon.png20/20) and have a large amount of health. Using Diplopia also duplicates all of Isaac's other wisps.
  • (except in Repentance)Collectible Brimstone icon.pngBrimstone: Isaac fires two lasers simultaneously.
    • (in Repentance) Isaac gains a powered-up version of Brimstone with a unique costume that deals 1.2x damage and has +1 damage. Further copies will add another +1 damage.
  • Collectible Contract From Below icon.pngContract From Below: Triples the drops upon clearing a room.
  • (in Repentance)Collectible Damocles icon.pngDamocles: Spawns an extra item for each item cloned.
  • Collectible Dr. Fetus icon.pngDr. Fetus: Isaac fires two bombs simultaneously.
  • Collectible Eden's Blessing icon.pngEden's Blessing: Tears upgrades stack and Isaac gains two items at the start of the next run. Stacks up to 10 times.
  • Collectible Epic Fetus icon.pngEpic Fetus: Two missiles drop, one after the other.
  • (except in Repentance)Collectible The Inner Eye icon.pngThe Inner Eye: Isaac fires 6 tears. Tears down stat does not stack.
    • (in Repentance) Isaac fires an additional tear. Tears down stat does not stack.
  • Collectible The Ludovico Technique icon.pngThe Ludovico Technique: A smaller tear orbits the main tear.
  • (except in Repentance)Collectible Maw Of The Void icon.pngMaw Of The Void: Increased damage for tears and ring.
  • Collectible Mom's Knife icon.pngMom's Knife: Isaac fires two knives simultaneously.
  • Collectible Monstro's Lung icon.pngMonstro's Lung: The tear burst gains another (except in Repentance)10 tears/(in Repentance)12 tears, nearly doubling in size. Stacks up to 4 times.
  • (except in Repentance)Collectible Mutant Spider icon.pngMutant Spider: Isaac fires 8 tears. Tears down stat does not stack.
    • (in Repentance) Isaac fires 2 additional tears. Tear down stat does not stack.
  • Collectible The Relic icon.pngThe Relic: An extra soul heart is given for each relic familiar.
  • (in Afterbirth † and Repentance)Collectible Schoolbag icon.pngSchoolbag + any active item: While there is no use in duplicating the Schoolbag, it gives Isaac a use for duplicating an active item.
  • (except in Repentance)Collectible Steam Sale icon.pngSteam Sale: All items in Shops become free. With Collectible Restock icon.pngRestock, items can be infinitely bought for free.
    • (in Repentance) Each additional Steam Sale will further halve the price. Items cannot be reduced below 1 cent.
  • Collectible Technology icon.pngTechnology: Isaac fires two lasers simultaneously.
  • Collectible Tech X icon.pngTech X: Isaac fires two laser rings simultaneously.
  • (in Repentance)Collectible Twisted Pair icon.pngTwisted Pair: Adds two more familiars that float further away from either side of Isaac.
  • (in Repentance)Wild CardWild Card: Allows infinite uses of Diplopia. This can be done by dropping the card, using Diplopia, then picking up the copied card and using it. This results in everything in the room being copied, including the first wild card. This can be repeated infinitely as long as Diplopia was the last item used.
  • (in Rebirth and Afterbirth)Collectible The Wiz icon.pngThe Wiz: Isaac fires 4 tears diagonally.
    • (in Afterbirth † and Repentance) Isaac fires 3 tears, one straight ahead and two diagonally.

Interactions

  • (except in Repentance)? Card? Card: Expends both the card and the item with no additional benefit.
    • (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.
      • If 3 ? Cards are gathered in the same room, one of them can be used to duplicate infinite ? Cards as well.
  • (in Afterbirth † and Repentance)Collectible Compound Fracture icon.pngCompound Fracture: Range increases twice. No effect on how many bone tears are fired or how many bone shards are fired.
  • Collectible Continuum icon.pngContinuum: Only increases range further.
  • Collectible Cricket's Head icon.pngCricket's Head: Damage multiplier doesn't stack.
  • Collectible Crown Of Light icon.pngCrown Of Light: Only further decreases shot speed and increases range.
  • Collectible Dead Eye icon.pngDead Eye: The damage multiplier increases twice as fast, but still caps at double damage.
  • (in Afterbirth † and Repentance)Collectible Eden's Soul icon.pngEden's Soul / (in Repentance)Collectible Alabaster Box icon.pngAlabaster Box: All copies of these items starts with no charge.
  • Collectible Eve's Mascara icon.pngEve's Mascara: The damage and tear multipliers do not stack. The shot speed does stack.
  • (in Afterbirth † and Repentance)Collectible Eye of Belial icon.pngEye of Belial: Only further increases range.
  • (in Afterbirth † and Repentance)Collectible Finger! icon.pngFinger!: Spawns two familiars completely overlapping each other.
  • Collectible Godhead icon.pngGodhead: Only stat ups and downs compound, but the aura gains no bonus.
  • Collectible Guillotine icon.pngGuillotine: Isaac will have two orbital heads, but only one will fire tears.
  • Collectible Holy Mantle icon.pngHoly Mantle: An extra effect is added in the room it was found in, but only a single effect will be given in future rooms.
  • Collectible Iron Bar icon.pngIron Bar: Increases damage but not chance of concussive tears being fired.
  • Collectible Key Piece 1 icon.pngKey Piece 1, Collectible Key Piece 2 icon.pngKey Piece 2: Spawns a copy of the same Key Piece. The copy does not increase the chance for an Angel Room.
  • (except in Repentance)Collectible Kidney Stone icon.pngKidney Stone: Only further decreases speed.
  • Collectible Little Baggy icon.pngLittle Baggy / (in Afterbirth † and Repentance)Collectible Polydactyly icon.pngPolydactyly / Collectible Starter Deck icon.pngStarter Deck / (except in Repentance)Collectible Deep Pockets icon.pngDeep Pockets: Does not allow more than two pills or cards to be held at once.
  • Collectible Lost Contact icon.pngLost Contact: Only further decreases shot speed.
  • Collectible Magic Mushroom icon.pngMagic Mushroom: Increases all stats twice, but damage significantly less the second time as the 1.5x multipliers do not stack.
  • Collectible Marked icon.pngMarked: Only increases range and firerate.
  • Collectible Mom's Contacts icon.pngMom's Contacts: Only increases range.
  • Collectible Mom's Purse icon.pngMom's Purse / (in Afterbirth † and Repentance)Collectible Belly Button icon.pngBelly Button: Does not allow more than two trinkets to be held at once.
  • (except in Repentance)Collectible My Reflection icon.pngMy Reflection: Only increases range.
  • Collectible Piggy Bank icon.pngPiggy Bank: Only grants 3 more coins. Does not drop more pennies when taking damage.
  • Collectible Placenta icon.pngPlacenta: Only increases HP with no change to the regeneration effect.
  • (in Afterbirth † and Repentance)Collectible Pointy Rib icon.pngPointy Rib: Spawns two familiars that completely overlap each other.
  • Collectible Purity icon.pngPurity: No effect. Aura changes after a second pickup.
  • (in Repentance)Collectible Quints icon.pngQuints: Increases maximum familiar count by 5.
  • (in Repentance)Collectible Revelation icon.pngRevelation: Only adds soul hearts with no addition effect on the beam.
  • Collectible Sacred Heart icon.pngSacred Heart: Further decreases tears and shot speed with no increase in damage.
  • (in Repentance)Collectible Stop Watch icon.pngStop Watch: Further increases speed with no further effect on movement speed or shot speed of enemies.
  • (in Afterbirth † and Repentance)Collectible Sulfuric Acid icon.pngSulfuric Acid: Only further increases damage.
  • Collectible Tractor Beam icon.pngTractor Beam: Further increases shot speed, fire rate, and range with no other effects.

No Effect

In-game Footage

Gallery

Trivia

  • 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 Collectible Pupula Duplex icon.pngPupula Duplex.