Angel Room

简介

Angel Rooms are the divine equivalent of the Devil Room. They feature an angel and 0-4 free items. Taking one of these items causes all other free items to disappear. (Tainted Keeper still needs to pay for these items, and buying any of them causes all of the others to disappear. Some of these items cost 30 pennies to buy.)

Variations

The following room maps were made using Basement Renovator for cleaner viewing. Note that, unlike Devil rooms, items in Angel rooms cost nothing to take, but if there are multiple items, taking one will cause the others to disappear.

Normal

Items generated in these rooms pull from the Angel room item pool.

Greed Mode

Items generated in these rooms pull from the Greed Mode Angel room item pool.

Conditions to Make Angel Rooms Appear

For the player to have a chance to get an Angel Room after killing a boss (or with a card / Red Chest teleport), some conditions must be met: * A Devil Room door has spawned on any previous floor. ** Teleporting to a Devil Room with a card or a Red Chest doesn't count. ** Book of Virtues and the "You feel blessed!" fortune from s make the first deal to appear in a run to be an Angel Room. * No Deals with the Devil have been made throughout the run. ** Taking red chest items, using , using Coupon, or collecting an item from Krampus doesn't count. ** Even though it technically doesn't cost any health, taking a devil deal with The Lost will still prevent Angel Rooms from appearing. ** Book of Virtues and Act of Contrition allow for Angel Rooms to spawn even if a Devil Deal was taken previously, as well as allowing to take Devil Deals without being locked out of Angel Rooms.

a 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 selection between Angel Room and Devil Room is made upon opening the door after defeating the floor's boss (or upon teleporting to the room using a card or a Red Chest). 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: * na Killing Key Masters and Shell Game Beggars also applies the bonus. * Making a , , or pay out does not apply the bonus. * a If this coin flip succeeds, a Devil room will be generated regardless of the above coin flips.

Examples

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—take note that the result is not simply the sum of the coin flip probabilities 50% + 25% for 75%. If Isaac meets the prerequisites, has Key Piece 1, and has destroyed a 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.

Notes

* 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 card or a Red Chest. ** a 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|na, 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. ** a Angel Rooms that spawn after Isaac defeats It Lives will be normal Angel Rooms with items or pickups.

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