The Binding of Isaac Wiki
Advertisement

IsaacHD.png Xxx form2.png Isaac Rebirth.png Keeper sprite.png The Depths is the third chapter the player encounters. It takes the shape of a greyish stone cave, littered with bones.

Rooms

  • 1: The room will always appear once in this floor
  • 2: The room will always appear twice in this floor
  • Possible: There is a chance for this room to appear, usually due to certain criteria being met
  • *: This room can only appear due to a bug or special item
  • -: The room cannot appear in this floor.


Rooms with the core game
Rooms The Depths 1 The Depths 2 The Depths XL Note
Regular Rooms 10 - 12 14 - 15 21 - 31 The player must have Wrath of the Lamb installed for The Depths XL to appear.
Treasure room icon.png Treasure Room 1 1 2
Shop icon.png Shop 1 1 1 There is always one shop, even in XL floors.
Secret room icon.png Secret Room 1 1 1
BossRoomIcon.png Boss Room 1 1 2 Boss Rooms are always linked in XL floors.
Challegne room icon.png Challenge Room Possible Possible Possible Will only be generated if Isaac has full health while entering the floor.
Arcade icon.png Arcade - Possible Possible Only generated when Isaac has 5 Coins upon entering a new floor or part.
Super secret room icon.png Devil Room Possible Possible Possible After fighting Mom, a Devil Room can appear and the sound will still play, but it is not possible to enter it as no door will appear. Using The Joker Card or teleporting out of the Boss Room and re-entering will allow you to enter the room.
Super secret room icon.png I AM ERROR Possible Possible Possible Only reachable by using the Telepills, which have a 6.66% chance to teleport Isaac to this room.
Rooms with Wrath of the Lamb
Rooms The Depths 1 The Depths 2 The Depths XL Note
Super secret room icon.png Super Secret Room 1 1 1
Curse room icon.png Curse Room Possible Possible Possible
Sacrifice room icon.png Sacrifice Room Possible Possible Possible
Angel room icon.png Angel Room Possible * * After fighting Mom, an Angel Room can appear and the sound will still play, but it is not possible to enter it as no door will appear. Using The Joker Card or teleporting out of the Boss Room and re-entering will allow you to enter the room.
Libary icon.png Library Possible Possible Possible 5% base chance to spawn, 25% if Isaac is holding a book.
Boss challenge room.png Boss Challenge Room Possible Possible Possible


Monsters

Monster Description WotL DLC
Attack Fly
CUSTOMredfly.png
Red Flies that follow Isaac and deal touch damage.
Moter
Moters.png
Follows Isaac, similar to Attack Flies. Will split into 2 Attack FliesCUSTOMredfly.png upon death.
Pooter
Pouter.png
Slow-moving flies that fire single blood shots at Isaac. Pooters do not deal touch damage.
Boom Fly
Boomfly.png
Flies around the room diagonally, dealing touch damage and exploding with a large blast radius upon death.
Boil
Boil.png
Stationary enemy that shrinks upon being hit. Will quickly swell up if not killed in time. Fires multiple short-ranged blood projectiles when fully swollen.
Hive
Hive.png
Walks around the room, avoiding Isaac while spawning Attack FliesCUSTOMredfly.png. Spawns a large number of FliesFly.png upon death.
Leaper
Leaper.png
Jumps around the room quickly, but not as fast as F. Hoppers. Occasionally jumps high into the air, dropping down elsewhere while firing 4 blood shots in a plus pattern.
Mr. Maw
Shape4336.png
Walks towards Isaac, quickly launching its head, still attached to its body by a cord. Turns into a MawMaws.png or PacerPacer.png upon death.
Globin
Globin.png
Walks towards Isaac, dealing one heart of contact damage. Turns into a pile of goo after taking enough damage, where it can be killed. Will regenerate after a short amount of time if not killed quickly.
Gazing Globin
Globin 2.png
Quickly walks towards Isaac, dealing one heart of contact damage. Turns into a pile of goo and slides away after taking enough damage, where it can be killed. Will regenerate after a short amount of time if not killed quickly.
Knight
Knights.png
Moves erratically around the room. Can only be damaged from behind.
Selfless Knight
Alternative knight.png
Moves erratically around the room, charging at Isaac at very high speed. Can only be damaged from behind.
Brain
Brain.png
Crawls around the room, leaving a trail of red Creep that does one heart of damage.
Guts
GutsMonster.png
Attaches itself to a wall or obstacle, such as a Rock, rolling around the room.
Leech
Leech.png
Quickly charges towards Isaac when he gets in its line of sight.
Host
Host1.png
Invulnerable stationary enemy. Raises its head up when Isaac gets close, revealing a fleshy stem that can be damaged. Upon raising its head, it will fire 3 blood shots and lower its head again.
Red Host
Host2.png
Stationary enemy that can be damaged even when its head is lowered. Fires 5 blood shots instead of 3 when rising, and fires more frequently.
Vis
Vis.png
Charges up a Brimstone laser when Isaac gets in its line of sight.
Baby
Boby.png
Fires a single blood shot at Isaac. Can teleport and reappear elsewhere.
Stone Grimace
Turret.png
Stationary and invulnerable monster that fires a fast-moving blood shot at Isaac. Stops firing when room is cleared.
Vomit Grimace
VomitTurret.png
Stationary and invulnerable monster that fires an IPECAC shot at Isaac. Stops firing when room is cleared.
Bosses found in normal rooms:
Blastocyst
Blastocyst full.png

Hops around the room, firing 4 large blood shots in a + pattern. Splits into two smaller parts upon taking enough damage, and into an Embyro at the end.

Larry Jr.
Larryjr full.png
Multi-segmented enemy that quickly crawls around the room, not targeting Isaac. Constantly leaves trails of Poop.
Fistula
Fistula.png
Floats around the room diagonally, splitting into smaller, faster versions every time it takes damage. Smallest versions spawn a ChargerCharger.png when killed.
Chub
Chub Full3.png

Moves around the room randomly, charging at Isaac if he gets in her line of sight. Constantly spawns ChargersCharger.png.

Bosses

Room-Layouts

Related Achievements

Ikilledmom.jpg "I Killed Mom!" - Defeat Mom in The Depths 2.
Lokishorns.jpg "Loki's Horns" - Defeat all of the bosses in The Depths. (Monstro II, Loki, Mom)
Darkboy.jpg "Dark Boy" - Complete The Depths without taking damage.

Chapters
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6

The ChestDLC.png

Advertisement