Effects[edit | edit source]
- Upon use, sacrifices up to 2 familiars and spawns an item from the Devil Room pool for each familiar sacrificed.
- The order in which the familiars were obtained does not matter; it picks 2 at random to sacrifice.
- If Isaac has no familiars, no Blue Flies and no Blue Spiders, the item will do nothing and will not be consumed.
- If the Devil Room pool has no items left, one or two copies of Pentagram are spawned.
- When playing Greed mode the normal Devil Room pool is still used, instead of the Greed mode pool.
- In addition to the familiars, any Blue Flies or Blue Spiders will be converted to 1 Penny each.
- On every use, causes a brief Curse of Darkness effect for a few seconds.
Notes[edit | edit source]
- If playing as Lilith, the Incubus familiar cannot be sacrificed.
- Charmed and friendly enemies cannot be sacrificed.
- Any Pretty Flies are counted as a single sacrifice.
- Every wisp generated by Book of Virtues will be converted to a Half Red Heart.
- Every ghost generated by Lemegeton will be converted to a Half Soul Heart.
- Tainted Eve's blood clot familiars are converted to pennies.
Interactions[edit | edit source]
- 7 Seals: cannot be sacrificed in itself, but Locusts can be sacrificed for one coin each, much like Blue Flies.
- Abyss: Locusts created from Abyss can be sacrificed as normal.
- Best Bud / Dead Bird / Eve's Bird Foot: These familiars can be sacrificed only when they're active.
- Cube of Meat / Ball of Bandages: The altar consumes the whole familiar, up to 4 cubes or balls at a time. If more than 4 are available, they count as other familiar(s) that may be separately chosen for sacrifice.
- Box of Friends / Monster Manual / Umbilical Cord: The familiars generated by these items can be sacrificed and turned into items.
- Brown Nugget: Spawned fly turrets count as familiars for sacrificing, although dropping the Brown Nugget will despawn the last fly turret, older ones will remain and can be sacrificed.
- Car Battery: No effect; only spawns one item per familiar sacrificed, and can only sacrifice up to 2 familiars.
- Chaos: The Altar ignores the effects of Chaos, always spawning items from the Devil Room pool instead of a random pool.
- Conjoined: If after sacrificing you don't have enough familiars for the Conjoined transformation, the transformation will be lost.
- Giant Cell: Converts all micro-Isaacs into 1 Penny each upon use.
- Guardian Angel / Seraphim / Sworn Protector: 2 Black Hearts will also drop.
- The Intruder: This item will be sacrificed, even though it doesn't act like a traditional familiar.
- Isaac's Heart: Can remove the Isaac's Heart familiar while the item remains, making Isaac invulnerable.
- Lil Delirium: Lil Delirium may be sacrificed, but the item is not removed. The familiar will return once another familiar is gained or lost, or the run is quit and resumed.
- More Options / There's Options: Sacrificial Altar ignores the effect of these items.
- The Pinking Shears: Body familiars that are spawned by this item can be sacrificed by switching between the Pinking Shears and Sacrificial Altar. However, the body familiars reappear when picking one of the spawned items up.
- Plum Flute: using Plum Flute then using Sacrificial Altar will remove the Baby plum spawned and give you an item for it. The Plum Flute is not removed upon doing this.
- Quints: The item will be lost, and each spawned familiar counts as one sacrifice.
- Star of Bethlehem: Although not readily apparent as a familiar, the Star can be sacrificed. It will be destroyed even if it is not currently in the same room.
- Void: When absorbed by Void, the one time use no longer applies unlike other one time use active items. Familiars can be sacrificed with every activation of Void.
- Has only one use, and then is removed from Void's effects
- Zodiac: A Gemini familiar granted by Zodiac can be sacrificed without losing the item.
- Dirty Mind: Each Dip spawned by Dirty Mind is turned into a coin, regardless of type.
- Sumptorium: Each Clot spawned by Sumptorium is turned into a coin, regardless of type.
The following familiars, followers, and orbitals cannot be sacrificed:
- 7 Seals
- Angelic Prism
- Angry Fly
- Blood Oath
- Bomb Bag
- Daddy Longlegs
- Dark Bum
- Dead Cat
- GB Bug
- Guppy's Hair Ball
- Hallowed Ground
- Holy Water
- Jaw Bone
- Juicy Sack
- Key Piece 1
- Key Piece 2
- Knife Piece 1
- Knife Piece 2
- Mom's Razor
- Mom's Toenail
- My Shadow
- Mystery Egg
- Mystery Sack
- Pointy Rib
- The Relic
- Rune Bag
- Sack of Pennies
- Sack of Sacks
- Sacrificial Dagger
- Samson's Chains
- Slipped Rib
- Spear of Destiny
In-game Footage[edit | edit source]
Trivia[edit | edit source]
- Sacrificial Altar was added in Booster Pack #5, after the initial release of the DLC.
- Sacrificial Altar is based on this Steam Workshop item by Niro and PJJLegend, originally known as Satanic Ritual.
Gallery[edit | edit source]
Sacrificial Altar's appearance in the original Steam Workshop mod.
Bugs[edit | edit source]
|Bug!||If used to sacrifice Succubus while Isaac is in its dark aura, the damage multiplier will remain active until the remainder of the floor.|
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