Apollyon
AchievementAfterbirth+Unlock unknown
Achievement details
- Achievement number
- 340
- Description
- Unlocked a new character.
- Requirement
- Defeat Mega Satan
How do you unlock Apollyon?
In The Binding of Isaac, Apollyon is unlocked by unlocking Mega Satan.
Structured pathSource-backed requirements are mapped into trackable steps.
Unlocked a new character.
Defeat Mega Satan
What unlocking Apollyon leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13