Angel Rooms feature an angel and several free items: the divine equivalent of the Devil Room. Every time the Devil room is spawned/entered, there's a chance for it to be replaced by the Angel Room if certain conditions are met. After beating the Dark Room or The Chest once, an Angel can be awoken by planting a bomb near the statue (or destroying it with Leo or similar items). This will begin an angel boss fight and allow Isaac to pick up Key Piece 1 or Key Piece 2 . Both pieces are needed to get through the Golden Door in the Chest or the Dark Room to fight Mega Satan.
Possible rewards found in the room include:
- 2 eternal hearts
- 3 soul hearts
- 1 Item from the angel room pool
- 2 angel chests
- 1 eternal heart, and 4 soul hearts behind key blocks
- 5 soul hearts
- 2 angel room pool items to choose from
- 3 angel room pool items to choose from
- 4 angel room pool items to choose from
- 6 coins
- 2 soul hearts and 1 gold heart
If an Angel Room appears upon defeating Mom's Heart or It Lives, it will only contain a beam of light leading to The Cathedral.
Angel Rooms that appear upon defeating It Lives no longer contain beams of light and instead have normal Angel Room contents.
The item spawned in an Angel Room is always free to be taken. See the following item pools for a comprehensive list of items:
- Angel Room (Item Pool)
- Angel Room (Afterbirth Item Pool) and Angel Room (Greed Mode Item Pool)
- Angel Room (Afterbirth+ Item Pool) and Angel Room (Afterbirth+ Greed Mode Item Pool)
Conditions to Make Angel Rooms Appear
- A Devil Room door has spawned on any previous floor.
- No items from the Devil Room or black market have been paid for with health over the course of the run.
Sacrifice Room Exception
- On the 3rd and 5th sacrifice in a sacrifice room, there is a 66% chance that the player will receive the "You feel blessed!" effect. This will increase the chances of the Angel Room spawning even if the previous conditions have not been met.
- On the 6th sacrifice in a sacrifice room, there is a 33% chance that the player will be teleported to the Angel Room if they haven't already visited or opened the Devil Room for that floor. This will occur even if the previous conditions have not been met.
Angel Room Generation Chance
The game makes a series of coin flips to determine if an Angel Room will appear or not. If one of these coin flips succeeds, an Angel Room is generated (except for the Devil beggar coin flip). If all the coin flips fail or no coin flips are done, a Devil Room is generated. Satisfying certain conditions gives additional coin flips with varying probabilities:
|Holding Rosary Bead||50%|
|Donating 10 coins to the donation machine on the current floor||50%|
|Holding Key Piece 1||25%|
|Holding Key Piece 2||25%|
| Killing a Devil beggar, key master, or shell game beggar on the current floor **
| Donating to a normal beggar until it pays out with an item on the current floor **
| Donating to a Devil beggar until it pays out with an item on the current floor **
| "You feel blessed!" fortune in the sacrifice room of the current floor
** These conditions share the same "coin flip chance" in Rebirth.
If Isaac meets the prerequisites and has Key Piece 1 with him, the game will make two coin flips to determine if he gets an Angel Room or not. The first coin flip has a 50% success chance and the second one has a 25% success chance. Isaac will only get a Devil Room if both coin flips fail, and he will get an Angel Room if one of the coin flips succeeds. The chance of failure is 0.5 * 0.75 = 0.375, which means the chance of success is 1 - 0.375 = 0.625. Thus, Isaac has a 62.5% chance to get an Angel Room.
If Isaac meets the prerequisites, has Key Piece 1 , and has destroyed a Devil beggar on the current floor, the chance to fail all coin flips (and get a Devil Room) become 0.5 * 0.75 * 0.75 = 0.28125, which means that the chance of success is 1 - 0.28125 = 0.71875. Thus, Isaac has a 71.875% chance to get an Angel Room.
- The highest Angel Room chance is 95.25% in Rebirth and 98.34% in Afterbirth (with the sacrifice room blessings).
- Eucharist guarantees that an Angel Room will spawn on every possible floor.
- It is possible to be teleported to an Angel Room from a Joker card or a red chest.
- It is also possible to teleport there from the 6th sacrifice of a sacrifice room.
- If an Angel Room spawns after the player defeats Mom's Heart or It Lives, instead of items or pickups, a beam of light will appear. Touching this beam of light will take the player to the Cathedral. The Angel can still be awoken by destroying the statue in this room. The beam of light will disappear for the duration of the fight.
- The rock behind the Angel can rarely be a tinted rock.
- A troll bomb can sometimes appear behind the Angel Statue, blowing it up. If the Angel fights have been unlocked, this will begin the boss fight if the player is not careful or quick enough to move the bomb.
- Two angel statues can appear in the same room, allowing Isaac to fight both Uriel and Gabriel. It is possible to get both Key Pieces if Isaac awakes and fights each of them one by one; however, fighting both at once will only spawn one Key Piece corresponding to the last defeated angel.
- Contrary to popular belief, the Bible Tract doesn't allow Angel Rooms to appear after paying for a Devil Deal.
Boss Challenge Room
Super Secret Room
I AM ERROR
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