Basement

(chapter 1)
Stage ID	1     19
Floor ID	1, 2     1

The Basement is one of the environments in Chapter 1. Unlocked at the beginning of the game, it is considered the easiest of the environments in the game. The theme of the Basement is flies and poop.

The Basement's harder unlockable variants are Cellar and the Burning Basement.

Monsters

Entity	ID	Description

Degraded Bosses
Blastocyst (small)

Bosses

Dingle	The Duke of Flies	Gemini	Gurglings

Larry Jr.	Monstro	The Fallen Template:DevilRoomRequired	Famine

File:Boss The Headless Horseman.png
The Headless Horseman	Steven	Dangle	Little Horn

Rag Man	Turdlings	Baby Plum

Unlockable Achievements

• 

  Monstro's Tooth - Beat Chapter 1.

• 

  Something From The Future - Beat Basement 40 times.

• 

  The Cellar - Beat all Basement bosses ( except Baby Plum) (not restricted to beating bosses in The Basement).

• 

  Sprinkler - Beat Chapter 1 without taking damage.

• 

  Basement Boy - Beat Chapter 1 without taking damage.

Music

The music for the Basement is titled Diptera Sonata. Diptera is the order of true flies. Thus, Diptera Sonata literally means "Fly Sonata".

Binding of Isaac: Rebirth OST

The Binding of Isaac: Rebirth
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