The Necronomicon

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The   Necronomicon
Item icon
Item altar
"Mass room damage"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Recharge Time
Removed in Repentance6 rooms 6 rooms
Added in Repentance4 rooms 4 rooms
Table dividing line 3.png
Collection Grid
Removed in Afterbirth(page 1, column 5, row 4)
Added in Afterbirth(page 1, column 15, row 2)
Unlock Method
The Necronomicon Use XIII - Death 4 times

The Necronomicon is an unlockable activated item.

Effect[edit | edit source]

  • Deals 40 damage to every enemy in the room.
  • Added in Afterbirth † This item belongs to the Bookworm set. Collecting three items from this set will transform Isaac into Bookworm.

Notes[edit | edit source]

  • Many collectibles will produce effects similar to the Necronomicon, such as depleting a Black Heart or blocking projectiles with 15►Dry Baby Dry Baby.
  • The Necronomicon deals a considerable amount of damage to bosses that have multiple damageable parts, e.g. Larry Jr. and The Hollow.
  • This item also does high enough damage to instantly kill most non-boss enemies.

Synergies[edit | edit source]

In-game Footage[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The Necronomicon is a fictional grimoire appearing in the works of horror writer H.P. Lovecraft.
  • The book seems to be bound in human skin, which explains the face on its cover.
    • The face on the cover is another reference to The Evil Dead franchise, which has the same face on its Necronomicon.

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