Bendy and the Dark Revival has 5 chapters. It also has an additional post- launch add-on called The Archives , but the main story is five chapters long.

Chapter list

  • Chapter 1: Drawn to Darkness
  • Chapter 2: The Demon's Domain
  • Chapter 3: The Eternal Machine
  • Chapter 4: Factory of Horrors
  • Chapter 5: The Dark Revival

Extra content

  • The Archives was added later, after the main release.

TL;DR: 5 chapters total for the main game.