Devil Room.png

Devil Rooms either contain a set of different Pickups or allow him to make deals with the devil. A Devil Room has a chance to appear in a 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.

DLC.png In Greed Mode, Devil Rooms appear upon completing the optional 11th wave of a floor.

Possible Contents

Additionally, 2 Red Fireplaces may spawn. Spikes may spawn instead of or in addition to any items/pickups.

DLC.png Devil Beggars, Mom's Hands, Nulls, and Imps may also appear in the Devil Room.

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

DLC.png Devil Rooms that appear upon defeating It Lives no longer contain trapdoors and instead have normal Devil Room contents.

Deals with the Devil

A Devil Room has a high chance of spawning 1-3 Collectibles that will be put up for sale. Unlike shops where Isaac pays with money, to make deals with the devil Isaac has to trade heart containers for the items on sale. All items either cost 1 or 2 red heart containers and their prices roughly correspond to their power.

See Devil Room (Item Pool), DLC.png Devil Room (Afterbirth Item Pool), and Devil Room (Greed Mode Item Pool) for a comprehensive list of items offered and their health price.

Notes

  • If Isaac does not have any red hearts or red heart containers upon entering a Devil Room, all items will cost 3 Soul Hearts.
  • Taking a Devil Deal that costs an equal or greater amount of red heart containers that Isaac possesses while also possessing one or more Soul Hearts or Black Hearts will leave Isaac with only those Soul Hearts or Black Hearts and will not kill him.
  • If taking a deal leaves you with no heart containers, you can still survive if you pick up a soul heart or black heart while Isaac is holding the item in the air.
  • DLC.png If Isaac is presented with 2+ items to buy, but only have enough red hearts to buy one, the other(s) price will change to 3 soul hearts upon spending your red hearts.

Angel Rooms

  • Refusing to make deals with the devil will give Isaac the chance of an Angel Room replacing the Devil Room on subsequent floors. If any deal with the devil is taken (including Black Market deals), Angel Rooms will not spawn for the remainder of the run.
  • Only paying health (Red Hearts or Soul Hearts) for an item in a Devil Room or a Black Market counts as a deal with the devil. Taking black hearts, opening Red Chests, and taking items that weren't paid for (such as Red Chests, Krampus, Beggars, Pandora's Box, and Credit Card) do not count as Devil Deals, allowing Isaac to still see Angel Rooms.


Conditions to make Devil Rooms appear

A Devil Room can only open on floors between Basement/Cellar II and Womb/Utero II.

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

Condition Chance
Blowing up one dead shopkeeper on the current floor +10%
Having Pentagram +20%
DLC.png +10%
Having a second Pentagram +10%
DLC.png +5%
Having Black Candle +30%
DLC.png +15%
Holding Book Of Revelations +35%
DLC.png +17.5%
Destroying one normal 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%
Holding Book Of Belial +2500%
DLC.png +12.5%
Having 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

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 Goat Head.
  • Taking soul or black heart damage does not decrease the chance to open a Devil Room; only red hearts count.
  • Taking red heart damage from a Blood Donation Machine, IV Bag, or Blood Rights does not decrease the chance to open a Devil Room. (The Bad Trip pill effect still counts as red heart damage though.)
  • Killing Devil Beggars, Skull Game Beggars, or Key Masters do not increase the chance to open the Devil Room.
  • If a Devil Room Door spawns after a boss fight, it is recommended to go directly into the Devil Room as chance for the door to stay open upon leaving and re-entering the room is 1/4th of the original opening chance.

There are also 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 the Joker Card to directly transport into the room.
  • DLC.png Using Teleport 2.0 after all other rooms on the floor (excluding the I AM ERROR room) have been visited.

Notes

  • If the game process crashes or is forcefully closed, the Devil Room of the current floor will be changed to a Devil Room with 2 deals. Guppy's Head and The Book Of Sin will usually be available unless Isaac has already seen them.
    • The Devil Room can also crash due to this, only offering The Sad Onion and Breakfast, with Red Fireplaces that will always drop Black Hearts, or Red Chests that will always contain an item.
  • The rock behind the Devil can rarely be a Tinted Rock.

Gallery

SmallIsaac.png 房间 SmallIsaac.png

Boss Room Icon.png
Boss房
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小Boss房
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宝物房
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商店
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赌博房
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挑战房
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Boss挑战房
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诅咒房
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献祭房
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隐藏房
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超级隐藏房
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图书馆
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恶魔房
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天使房
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宝库
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骰子房
Bedroom Icon.png Bedroom2 Icon.png
卧室
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错误房
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Boss Rush
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暗门
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