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Curved Horn

TrinketRebirthLocked

How do you unlock Curved Horn?

In The Binding of Isaac, Curved Horn is unlocked by earning the The Lamb completion mark as Judas (Character).

Structured pathSource-backed requirements are mapped into trackable steps.

+2 flat damage.

See the full unlock path for Curved Horn — 5 steps

Curved Horn (Achievement)
- Judas (Character) → The Lamb (normal)
  1. Defeat Satan 5 times to unlock The Negative. source
  2. The Negative is a guaranteed drop from Mom; take it, then defeat Satan in Sheol and touch the chest to enter Dark Room. source
  3. Find and defeat The Lamb in Dark Room. source
  - Judas (Character)

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What unlocking Curved Horn leads to

Nothing depends on this yet.

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13