While the game is typically a paid title, there are specific ways to find it for free or at a discount:
The game consists of five chapters, each focusing on different areas of Joey Drew Studios: Guide :: Chapter 1 Walkthrough - Steam Community
Bendy and the Ink Machine (BATIM) is an episodic first-person puzzle action horror game that follows Henry Stein, a retired animator who returns to his old studio only to find it corrupted by a mysterious ink machine. How to Get the Game
The first chapter, "Moving Pictures," is available for free on platforms like Itch.io.