This hero class expansion is available for free on platforms like the Epic Games Store and Steam.
While The Crimson Court itself is generally not free, there are legitimate ways to get the game or related content at no cost: Darkest Dungeon: The Crimson Court Free Downloa...
The Crimson Court introduces a parallel campaign that adds significant depth and difficulty to the base game: Go to product viewer dialog for this item. This hero class expansion is available for free