Binding of Isaac: Rebirth Wiki
Advertisement
Binding of Isaac: Rebirth Wiki
Disambig.png This article is about the room. For the item pool, see Devil Room (Item Pool).

Devil Room.png

Devil Room Devil Rooms primarily allow Isaac to make Deals with the Devil, but they can also contain a variety of enemies, pickups, or even a boss battle against Krampus. A Devil Room has a chance to appear in a Boss Room Boss Room after the boss occupying it has been defeated. If certain criteria are met, a Devil Room can be replaced by an Angel Room Angel Room.

Added in Afterbirth In Greed Mode, Devil Rooms are guaranteed appear upon completing the optional 11th wave of a floor.

Possible Contents[]

Additionally, 2 Red Fire Places may spawn, Added in Afterbirth † as well as Urns. Spikes may spawn instead of or in addition to any items/pickups. Some regular enemies can appear as well, including: Added in Afterbirth 1 Mom's Hand, 2 Nulls, or 1 Imp.

If a Devil Room appears upon defeating Mom's Heart Removed in Afterbirth or It Lives, it will only contain a trapdoor to Sheol Sheol.

Deals with the Devil[]

A Devil Room has a high chance of spawning items that will be put up for sale. Unlike Shop Shops where Isaac pays with money, to make Deals with the Devil Isaac has to trade Red Heart Containers as payment. All items normally cost either 1 or 2 Red Heart Containers, and their prices roughly correspond to their power.

See the following item pool for a comprehensive list of items offered and their health price: Devil Room (Item Pool)

Notes[]

  • If Isaac does not have Red Heart Containers upon entering a Devil Room, all items will cost 3 Soul Hearts.
    • Added in Afterbirth If Isaac is presented with 2+ items to buy, but only have enough Red Hearts to buy one, the price of the other(s) will change to 3 Soul Hearts upon spending your Red Hearts.
    • Added in Repentance Additionally, if Isaac only has one Red Heart, deals that normally cost 2 Hearts will change to one Red Heart and two Soul Hearts.
      • Unlike other Deals, if Isaac does not have enough Soul Hearts for this type, he will not be able to take the Deal.
    • Added in Repentance If Isaac has less than 3 Soul Hearts, but at least one Bone Heart, he can take a three Soul Heart Deal and stay alive because of the bone hearts.
  • Added in Afterbirth / Removed in Repentance Two-Heart Deals can be taken even if Isaac does not have enough Red Hearts to afford them, as long as he has one Red Heart to spend.
  • Spending all of his Heart Containers will not kill Isaac as long as he has Soul Hearts or Black Hearts remaining.
    • If taking a Deal leaves Isaac with no Red Heart Containers, he can still survive if he picks up a Soul Heart or Black Heart while holding the item in the air. Also, if he has an active item that grants Soul/Black Hearts, he can take a Deal and then use the active item, leaving him alive with whatever the item gave him[1].
  • Added in Repentance Some items may cost Soul Hearts even if Isaac still has Red Hearts.
    • An item's price may change from Red Hearts to Soul Hearts if Isaac visited the Devil Room prior to obtaining enough Soul Hearts and returning to the Devil Room

Angel Rooms[]

  • Refusing to make Deals with the Devil will give Isaac the chance of an Angel Room Angel Room replacing the Devil Room Devil Room on subsequent floors. If any Deal with the Devil is taken, Angel Rooms will not spawn for the remainder of the run.
  • Only the act of paying health (Red Hearts or Soul Hearts) for an item in a Devil Room counts as a Deal with the Devil. Taking Black Hearts, opening Red Chests, and taking items that weren't paid for (such as those obtained from Red Chests, Krampus, Beggars, 15►Pandora's Box Pandora's Box, or made free by using Credit Card Credit Card) do not count as Deals taken, allowing Isaac to still see Angel Rooms.
  • Removed in Repentance Trading Heart Containers for items in a Black Market Black Market counts as taking a Deal with the Devil for Angel Room generation purposes.
  • Added in Repentance If the first offered Devil Room is not entered at all, the next offer is guaranteed to be an Angel Room.

Conditions to Make Devil Rooms Appear[]

A Devil Room Devil Room can only open on floors between the second floor of Chapter 1 and Chapter 4.

There is only a 1% base chance for the Devil Room door to open. This chance can be modified in various ways:

Condition Chance
Blowing up at least one Shopkeeper on the current floor +10%
Having 15►Pentagram Pentagram Removed in Afterbirth +20%
Added in Afterbirth +10%
Having a second 15►Pentagram Pentagram Removed in Afterbirth +10%
Added in Afterbirth +5%
Having 15►Black Candle Black Candle Removed in Afterbirth +30%
Added in Afterbirth +15%
Holding 15►Book of Revelations Book of Revelations Removed in Afterbirth +35%
Added in Afterbirth +17.5%
Blowing up at least one Beggar on the current floor +35%
Taking no Red Heart damage against the boss +35%
Taking no Red Heart damage for the entire floor +99%
Added in Repentance Having 15►Act of Contrition Act of Contrition and taking Red Heart damage +40%
Additional +15% is added if Red Heart damage was taken against the boss
Added in Repentance Having 15►Satanic Bible Satanic Bible Wisps +10% up to +50%
Holding 15►The Book of Belial The Book of Belial Removed in Afterbirth +2500%
Added in Afterbirth +12.5%
Having 15►Goat Head Goat Head Guaranteed
Previous Devil Room door seen two floors ago x0.5
Previous Devil Room door seen less than two floors ago x0.25

For example, if Isaac has avoided taking Red Heart damage and has blown up a Shopkeeper, he will have a (1+35+99+10)% = 145% base Deal with the Devil chance which will be displayed 100%, which will then go down to 36.25% once he sees the Devil Room.

Notes[]

  • On XL floors, the Devil Room door can only appear after completing the second Boss Room.
  • Once a Devil Room door closes for the floor, it cannot be re-opened without picking up 15►Goat Head Goat Head.
  • Taking Soul Heart, Black Heart, Added in Afterbirth † Bone Heart, or Added in Repentance Rotten Heart damage does not decrease the chance to open a Devil Room; only Red Hearts count.
  • Killing Devil Beggars, Shell Game Beggars, or Key Masters does not increase the chance to open the Devil Room.
    • Added in Repentance Killing a Battery Bum will increase the Devil Room chance.
  • If a Devil Room door opens after a boss fight, it is recommended to go directly into the Devil Room, as the chance for the door to stay open upon leaving and re-entering the room is 1/4th of the original opening chance.
  • There are additional ways to enter a Devil Room on any floor:
    • Red Chests have a chance of teleporting Isaac into the Devil Room upon being opened.
    • Using Joker Joker will teleport Isaac into the room.
    • Added in Afterbirth Using 15►Teleport 2.0 Teleport 2.0 after all other rooms on the floor (excluding the I AM ERROR I AM ERROR room) have been visited.
  • 15►Teleport! Teleport!, 15►Undefined Undefined, and Telepills cannot transport Isaac to the Devil Room.
  • Removed in Repentance The Lost The Lost can take all Deals with the Devil for free.
    • Added in Repentance The Lost is allowed to choose only one of the offered Deals; the others will vanish afterward.
  • Removed in Afterbirth † The rock behind the Devil can rarely be a Tinted Rock.
  • Added in Afterbirth † / Removed in Repentance An Angel statue can rarely substitute the Satan statue and can be awoken with an explosion as usual.
    • Angels spawned in this way do not drop Key Pieces, however.
  • The highest possible Devil Deal chance without Goat Head is Added in Afterbirth / Removed in Repentance 204% Added in Repentance 254%.

Gallery[]

Unlockable Achievements[]

Trivia[]

  • In the original The Binding of Isaac, the Devil Rooms were somewhat less forgiving; if Isaac has an Eternal Heart, taking a Devil Deal will remove it.
    • Furthermore, if Isaac has at least one Soul Heart and one Red Heart Container, and he takes a Devil Deal, Isaac would die. Isaac's last will will show a pentagram or a goat head as a result.
    • Purchasing something worth two Red Heart Containers with one Red Heart Container and at least one Soul Heart will also remove all the Soul Hearts. Strangely, this will not kill Isaac, but the next damage he takes will, similarly to The Lost The Lost.

References[]


Advertisement