We Know the Devil is a captivating visual novel designed for Windows that explores the complexities of teenage relationships set against the backdrop of a summer camp. Players engage in a storyline that follows three distinct characters: the assertive Neptune, the adventurous Jupiter, and the reserved Venus. Each character brings a unique perspective to the narrative, which revolves around their reluctant battle against the devil. The game emphasizes themes of friendship, exclusion, and personal growth, making it a thought-provoking experience.

The gameplay involves decision-making that impacts the relationship dynamics between the characters, allowing players to explore different narrative paths. The art style is visually striking, complementing the emotional depth of the story. With its engaging plot and character development, We Know the Devil offers an immersive adventure that resonates with players who appreciate narrative-driven games.