The Binding of Isaac Wiki
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IsaacHD.png Isaac Rebirth.png The Caves are the second chapter the player encounters. It takes the shape of a brown stone cave.

This environment introduces Pits and Spikes. The player cannot move over pits without The Ladder, items that give him flight, or bombing an adjacent Rock to fill the hole in.

Spikes hurt Isaac for one heart of damage, unless he has flight.

Caves 2: Note the miniboss fight

TNT barrels are found on this environment. These barrels explode if shot.

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
  • -: The room cannot appear in this floor.


Rooms with the core game
Rooms Caves 1 Caves 2 Caves XL Note
Regular Rooms 9 - 12 13 - 14 21 - 25 The player must have Wrath of the Lamb installed for The Caves 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
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 Caves 1 Caves 2 Caves 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 Possible Possible
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
Black Fly
Fly.png
Tiny black flies that do not hurt Isaac upon touch.
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.
Red Boom Fly
Spitfly.png
Flies around the room diagonally, dealing touch damage and exploding into 6 directional blood shots upon death.
Sucker
Sucker.png
Flies slowly towards Isaac, exploding into 4 projectiles in a + formation upon death.
Hive
Hive.png
Walks around the room, avoiding Isaac while spawning Attack FliesCUSTOMredfly.png. Spawns a large number of FliesFly.png upon death.
Hopper
Hopper.png
Jumps around the room slowly, damaging Isaac by touch.
Gusher
Gusher.png
Walks aimlessly around the room, firing extremely short-ranged blood projectiles from its head. Usually spawned after killing a Gaper/Frowning Gaper.Gaper.png
Maw
Maws.png
Floats towards Isaac, firing fast-moving blood shots.
Red Maw
Redmaw.png
Floats towards Isaac faster than regular Maws, exploding into 4 blood shots in a plus pattern upon death. Does not fire any shots.
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.
Clotty
Clotty.png
Moves around the room, firing 4 blood shots in a plus pattern.
Clot
Clot2.png
Moves around the room, firing 4 tar shots in an X pattern.
I. Blob
Blockade.png
Moves around the room, firing 8 shots in all directions.
Maggot
Maggot.png
Aimlessly moves around the room, damaging Isaac by contact.
Charger
Charger.png
Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Spitty
Spity.png
Slowly moves around the room, firing a single long-ranged blood shot when Isaac 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.
Bosses found in normal rooms:
Embryo
Embryo.png
Aimlessly hops around the room, damaging Isaac by contact damage.
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 Charger when killed.

Bosses

Room-Layouts

Related Achievements

Spelunkerhat.jpg "The Spelunker" - Complete The Caves once.
Lilchubby.jpg "Lil Chubby" - Defeat all of the bosses in The Caves. (Fistula, Gurdy, Peep, Chub)
Spelunkerboy.jpg "Spelunker Boy" - Complete The Caves without taking damage.

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

The ChestDLC.png

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