I'd like to know the probabability of a Sacrifice Room to appear on a floor. For me it feels like 33% or 50%. Does someone have more reliable data?

1 Answer 1


Based on what I've found, there is no set chance to find a sacrifice room on any given floor, however, according to the wikia:

Sacrifice rooms are more likely to be spawned if the player has full HP (Soul hearts will add up as well).

Source: http://bindingofisaac.wikia.com/wiki/Sacrifice_Room

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