The Catacombs

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Catacombs.png

The Catacombs is the alternative chapter of The Caves. The Catacombs are unlocked once each boss in The Caves has been defeated.

Monsters[edit | edit source]

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Monsters Description
Boil
Boil
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires multiple short-ranged blood projectiles in random directions when fully swollen.
Gut
Gut
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires Ipecac shots in random directions when fully swollen.
Sack
Sack
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Occasionally spawns Spiders when fully swollen.
Walking Boil
Walking Boil
Does not shrink or regenerate. Walks around aimlessly and fires multiple short-ranged blood projectiles in random directions.
Walking Gut
Walking Gut
Does not shrink or regenerate. Walks around aimlessly and fires Ipecac shots in random directions.
Walking Sack
Walking Sack
Does not shrink or regenerate. Walks around aimlessly and occasionally spawns Spiders.
Bony
Bony
Wanders around the room and throws a bone at Isaac when he is in sight.
Buttlicker
Buttlicker
Attaches itself to other Buttlickers and erratically moves around the room, similar to Larry Jr..
Chubber
Chubber
Randomly wanders around the room. Pauses to fire a Charger that deals one heart of damage when Isaac gets in its line of sight. The Charger is invulnerable, blocks Isaac's tears, has limited range, and flies back to the Chubber.
Clot
Clot
Randomly wanders around the room, firing 4 tar shots in the ordinal directions.
I.Blob
I.Blob
Randomly wanders around the room, firing 8 shots in all directions.
Dip
Dip
Slowly dashes in random directions, dealing contact damage.
Squirt
Squirt
Dashes towards the player and deals contact damage. Spawns 2 Dips upon death.
Embryo
Embryo
Aimlessly hops around the room, dealing contact damage.
Fatty
Fatty
Slowly walks towards Isaac. Occasionally farts, which pushes Isaac and adjacent enemies away.
Pale Fatty
Pale Fatty
Slowly walks towards Isaac. Occasionally farts and shoots blood shots in 6 directions. Can turn into a Blubber upon death.
Half Sack
Half Sack
Wanders around aimlessly and leaves a trail of red creep.
Blubber
Blubber
Walks around aimlessly and randomly spews blood around itself. Can turn into a Half Sack when killed.
Attack Fly
Attack Fly
Red fly that follows Isaac and deals touch damage.
Moter
Moter
Follows Isaac, similar to Attack Flies. Splits into 2 Attack Flies upon death.
Pooter
Pooter
Slow-moving fly that occasionally fires single blood shots at Isaac. Does not deal touch damage.
Red Boom Fly
Red Boom Fly
Flies around the room diagonally, dealing touch damage and exploding into 6 blood shots upon death.
Full Fly
Full Fly
Flies toward Isaac erratically, dealing touch damage. Splits into 6 directional shots upon death.
Sucker
Sucker
Flies slowly towards Isaac, exploding into 4 shots in the cardinal directions upon death.
Spit
Spit
Flies slowly towards Isaac, firing an Ipecac shot towards Isaac upon death.
Gurgle
Gurgle
Walks towards Isaac, firing Ipecac shots at him. Can turn into a Splasher upon death.
Skinny
Skinny
Slowly walks towards Isaac, leaving short-lasting red creep behind itself.
Globin
Globin
Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which can be killed. Will regenerate after a short period of time if not killed quickly.
Gazing Globin
Gazing Globin
Quickly chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which will slide away from Isaac and can be killed. Will regenerate after a short period of time if not killed quickly.
Grub
Grub
Erratically moves around the room like Larry Jr. and charges at Isaac when he gets within its line of sight. Spawns Maggots, Chargers, or Spitties upon death, one for each of its segments.
Gurglings
Gurglings
Charges towards Isaac when he lines up with them, leaving a trail of creep and shooting 6 blood shots.
Psychic Horf
Psychic Horf
Stationary enemy that fires a homing shot at Isaac when he gets in range of them.
Flaming Hopper
Flaming Hopper
Quickly hops around the room, dealing touch damage. Covers a larger distance than the regular Hopper.
Leaper
Leaper
Hops around the room, dealing touch damage. Occasionally jumps high into the air, dropping down onto Isaac's position while firing 4 blood shots in the cardinal directions.
Host
Host
Stationary enemy that is normally invulnerable. 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
Red Host
Stationary enemy that can be damaged even when its head is lowered. Fire 5 spread blood shots when it raises its head.
Mobile Host
Mobile Host
Acts like the Host, but follows Isaac and deals contact damage.
Flesh Mobile Host
Flesh Mobile Host
Acts like the Red Host, but follows Isaac and deals contact damage.
Keeper
Keeper
Hops around the room, firing 2 blood shots in a V formation at Isaac. Upon damaging Isaac, Isaac drops 2 coins on the ground but loses 3.
Knight
Knight
Moves erratically around the room and charges toward Isaac when in line of sight. Can only be damaged from behind.
Maggot
Maggot
Aimlessly moves around the room, dealing contact damage.
Charger
Charger
Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Spitty
Spitty
Slowly moves around the room, occasionally firing a single blood shot forwards.
Conjoined Spitty
Conjoined Spitty
Slowly moves around the room, occasionally firing blood shots from both ends of its body.
Mask + Heart
Mask + Heart
The Mask is invulnerable and moves around erratically, charging at Isaac when he lines up with it. The Heart avoids Isaac and fires 4 blood shots in the cardinal directions when Isaac gets near. Killing the Heart will automatically kill the Mask.
Maw
Maw
Slowly floats towards Isaac, firing blood shots when Isaac is in range of them.
Mulliboom
Mulliboom
Chases Isaac and explodes upon death or upon touching Isaac. The explosion deals a half-heart of damage instead of the regular full heart.
Hive
Hive
Walks around the room, avoiding Isaac while spawning Attack Flies. Spawns a large number of flies upon death, which can be Black Flies, Attack Flies, Pooters, or Fat Flies.
One Tooth
One Tooth
Follows Isaac and periodically dashes towards Isaac when it gets close. Deals contact damage.
Pacer
Pacer
Walks aimlessly around the room.
Splasher
Splasher
Walks aimlessly around the room, firing Ipecac shots in random directions.
Round Worm
Round Worm
Pops out of the ground in random locations and spits a blood shot at Isaac if he is in sight.
Nightcrawler
Nightcrawler
Pops out of the ground in random locations and fires four short-range shots that spiral outwards if Isaac is in sight.
Spider
Spider
Erratically moves towards Isaac and deals touch damage.
Big Spider
Big Spider
Erratically moves towards Isaac and deals touch damage. Splits into two Spiders upon death.
Level 2 Spider
Level 2 Spider
Crawls around the room erratically, following Isaac and dealing touch damage. Can jump small distances.
Ticking Spider
Ticking Spider
Crawls around the room erratically, following Isaac and dealing touch damage. Can jump small distances. Explodes upon death.
Trite
Trite
Quickly leaps towards Isaac and deals touch damage.
Ragling
Ragling
Quickly leaps towards Isaac and deals touch damage. Randomly shoots two purple shots that orbit around it.
Baby Long Legs
Baby Long Legs
Runs away from Isaac and frequently spawns Spiders.
Crazy Long Legs
Crazy Long Legs
Chases Isaac, dealing touch damage. Occasionally stops to spit blood shots in 8 directions.
Wall Creep
Wall Creep
Crawls along walls to try to line up with Isaac and shoots three blood shots in a line.
Blind Creep
Blind Creep
Randomly crawls along walls and shoots three spread blood shots.
Tumor
Tumor
Moves around the room diagonally, occasionally firing 6 shots. Fires more often upon getting damaged.
Constant Stone Shooter
Constant Stone Shooter
Stationary and invulnerable monster that continuously fires shots in a single direction.
Gaping Maw
Gaping Maw
Stationary and invulnerable monster that sucks Isaac towards it, along with Isaac's tears and enemy projectiles.
Mini-Bosses

Bosses[edit | edit source]

The Catacombs

Boss The Hollow.png
Boss The Husk.png
Boss Peep.png
Boss Polycephalus.png
Boss Pestilence.png
The Hollow The Husk Peep Polycephalus Pestilence Needs to be unlocked
Boss Carrion Queen.png
Boss The Wretched.png
Boss Gurdy Jr..png
Boss Dark One.png
Carrion Queen The Wretched Gurdy Jr. Dark One
Boss The Stain.png
Boss The Frail.png
Boss The Forsaken.png
The Stain Added in Afterbirth Needs to be unlocked The Frail Added in Afterbirth Needs to be unlocked The Forsaken Added in Afterbirth Needs to be unlocked
Boss Rag Mega.png
Boss Big Horn.png
Rag Mega Added in Afterbirth † Needs to be unlocked Big Horn Added in Afterbirth † Needs to be unlocked

Double Trouble

Boss Dingle.png
Boss The Duke of Flies.png
Boss Gemini.png
Boss Pin.png
(Double Trouble)

Dingle

(Double Trouble)

The Duke of Flies

(Double Trouble)

Gemini

(Double Trouble)

Pin

Unlockable Achievements[edit | edit source]

Music[edit | edit source]

The music for the Catacombs is titled Capiticus Calvaria. Calvaria is Latin for "Skull", and while Capiticus does not have a true definition, it most likely comes from the word Caput, meaning "Head", or Capitulum, meaning "Chapter".

Binding of Isaac: Rebirth Music

SmallIsaac.pngChaptersSmallIsaac.png
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Optional Chapter 5 Chapter 6 Endgame
Normal mode only
Hard mode only
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png
Sheol


Stage cathedral.png
Cathedral
Stage dark room.png
Dark Room


Stage chest.png
The Chest
The Basement The Caves The Depths The Womb
Added in Afterbirth Added in Afterbirth †
Stage cellar.png Stage catacombs.png Stage necropolis.png Stage utero.png ??? Stage the void.png
The Cellar The Catacombs Necropolis Utero ??? The Void
Added in Afterbirth Added in Afterbirth Added in Afterbirth Added in Afterbirth
Stage burning basement.png Stage flooded caves.png Stage dank depths.png Stage scarred womb.png
Burning Basement Flooded Caves Dank Depths Scarred Womb
Added in Afterbirth Greed mode only
Added in Afterbirth † Greedier mode only
Added in Afterbirth Added in Afterbirth
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png The Shop Ultra Greed
The Basement The Caves The Depths The Womb Sheol The Shop Ultra Greed


The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
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Isaac App.png Characters MainPageBabies.png Co-op MainPageItems Small.png Items Item Pools Item Pools MainPageMonsters.png Monsters MainPageObjects.png Objects
Red heart.png Pickups BlueBlue.png Pills MainPageRooms.png Rooms MainPageSeeds2.png Seeds Guppy App.png Transformations The Left Hand Icon.png Trinkets
Promotional Content