Shadows of Doubt is an immersive detective stealth game that transports players to a fully-simulated neo-noir metropolis. Set in a hyper-industrialized 1980s alternate reality, it allows players to step into the shoes of a private intelligence investigator. The game emphasizes the importance of information as players navigate a world where police work is outsourced to private contractors. Players can engage in various activities, including capturing a serial killer for a bounty and uncovering hidden secrets that lie within the city.

The gameplay is centered around stealth and exploration, where players can break into apartments, sift through documents, and hack into security systems. Each citizen in the game has a unique routine, job, and social interactions, making the environment dynamic and engaging. The open-world design encourages players to uncover secrets and use the information to their advantage, making for a rich and compelling detective experience.