Skip to content

26%

Ring Cap

TrinketRepentanceLocked

How do you unlock Ring Cap?

In The Binding of Isaac, Ring Cap is unlocked by earning the Mother completion mark as Tainted ???.

Structured pathSource-backed requirements are mapped into trackable steps.

Placing a Bomb spawns an extra bomb for free.

Ring Cap (Achievement)
- Tainted ??? → Mother (normal)
  1. Defeat Hush 3 times to unlock A Secret Exit. source
  2. After A Secret Exit is unlocked, a locked door to Downpour appears after completing Basement/Cellar/Burning Basement I or II. source
  3. Collect Knife Piece 1 in Downpour/Dross II. source
  4. Collect Knife Piece 2 in Mines/Ashpit II. source
  5. After defeating Mom in Mausoleum/Gehenna II, stab the flesh door that appears with the knife familiar to open it. source
  6. Defeat the Mausoleum version of Mom's Heart behind the flesh door, then reach Corpse II and defeat Mother. source
  - Tainted ???

Show full path Show missing

What unlocking Ring Cap leads to

Nothing depends on this yet.

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13