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.
Contents
Chapter 1
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Chapter 1.5 (Alternative)
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Chapter 2
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Chapter 2.5 (Alternative)
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Chapter 3
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Chapter 3.5 (Alternative)
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Chapter 4
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Chapter 4.5 (Optional/Alternative)
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Chapter 5
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Chapter 6
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Endgame (Optional)
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Level Generation
For the technical details of how each level / floor is generated, see Level Generation.
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Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Optional | Chapter 5 | Chapter 6 | Endgame | |
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![]() Sheol ![]() Cathedral |
![]() Dark Room ![]() The Chest | ||
The Basement | The Caves | The Depths | The Womb | |||||
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The Cellar | The Catacombs | Necropolis | Utero | ??? | The Void | |||
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Burning Basement | Flooded Caves | Dank Depths | Scarred Womb | |||||
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Downpour | Mines | Mausoleum | Corpse | Home | ||||
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Dross | Ashpit | Gehenna | ||||||
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The Basement | The Caves | The Depths | The Womb | Sheol | The Shop | Ultra Greed |
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