Saint & Sinner is a strategy game set in an alternate history where a young man named John is wrongly accused and sentenced to death for murdering his wife. The player takes on the role of John, trying to escape from prison and clear his name while uncovering a conspiracy.
The gameplay involves managing resources and making decisions that impact the story, as well as engaging in turn-based combat with enemies. The player must also navigate the prison's layout, avoiding guards and finding ways to progress through the game.
The game features a unique blend of strategy and storytelling, with a focus on exploration and character development.