Binding of Isaac Achievement: Maw of the Void
In-Game Secret Number
Unlocked a secret.
Donate 234 coins to the Greed Machine
Defeat Mega Satan as ???
Complete challenge #29 (Removed in Afterbirth+ The unlock is bugged and actually unlocks Blank Rune)
Defeat Ultra Greed as Keeper
Defeat Hush as Isaac
Defeat Hush as Eve
Defeat Mega Satan as Keeper
Unlocked a hidden chapter.
Defeat Mom's Heart 10 times
Earn all hard mode completion marks as Keeper
Defeat Mega Satan as Eve
Defeat Hush as ???
Defeat Ultra Greed as Magdalene
Defeat ??? as Keeper
Earn all hard mode completion marks as Cain
Defeat The Lamb as Lilith
Defeat Mom's Heart on hard mode as Lilith
Defeat Hush as Samson
Earn all hard mode completion marks as Eve
Defeat Ultra Greed as Lazarus