Chapters

Chapters are sets of floors which contain similar enemies, themes, bosses, and difficulties. Earlier chapters are divided into three floors, while later chapters contain one floor. Each chapter has different environments which, while retaining the same feel, have slightly different themes, enemies, bosses, and difficulties. Each environment also has its own music.

Chapter 1

The Basement	The Cellar	Burning Basement
The Basement	The Cellar	Burning Basement

Chapter 1.5 (Alternative)

Downpour	Dross
Downpour	Dross

Chapter 2

The Caves	The Catacombs	Flooded Caves
The Caves	The Catacombs	Flooded Caves

Chapter 2.5 (Alternative)

Mines	Ashpit
Mines	Ashpit

Chapter 3

The Depths	Necropolis	Dank Depths
The Depths	Necropolis	Dank Depths

Chapter 3.5 (Alternative)

Mausoleum	Gehenna
Mausoleum	Gehenna

Chapter 4

The Womb	Utero	Scarred Womb
The Womb	Utero	Scarred Womb

Chapter 4.5 (Optional/Alternative)

???	Corpse
???	Corpse

Chapter 5

Cathedral	Sheol
Cathedral	Sheol

Chapter 6

The Chest	Dark Room
The Chest	Dark Room

Endgame (Optional)

The Void	Home
The Void	Home

Level Generation

For the technical details of how each level / floor is generated, see Level Generation.



Chapter 1	Chapter 2	Chapter 3	Chapter 4	Optional	Chapter 5	Chapter 6	Endgame
					Sheol Cathedral	Dark Room The Chest
The Basement	The Caves	The Depths	The Womb


The Cellar	The Catacombs	Necropolis	Utero	???			The Void


Burning Basement	Flooded Caves	Dank Depths	Scarred Womb


Downpour	Mines	Mausoleum	Corpse				Home


Dross	Ashpit	Gehenna


The Basement	The Caves	The Depths	The Womb		Sheol	The Shop	Ultra Greed

The Binding of Isaac: Rebirth
Achievements	Attributes	Bosses	Cards and Runes	Challenges	Chapters
Characters	Co-op	Items	Item pools	Monsters	Objects
Pickups	Pills	Rooms	Seeds	Transformations	Trinkets