'Whos at My Door' is a psychological horror simulation game available on Android, where players navigate a city overrun by alien duplicates wearing human faces. The story unfolds on Halloween night, where the protagonist must identify real humans from impostors using a special candy that reveals their true nature. Players face the challenge of making critical decisions as they encounter various characters, each with their own secrets and potential traps. The game's unique Halloween theme is complemented by dark visuals and an eerie atmosphere, enhancing the immersive experience.

As players interact with different characters, each choice made can lead to multiple endings, creating a dynamic gameplay experience. The stakes are high, as giving the candy to a duplicate results in dire consequences for both the player and humanity. With its focus on storytelling and decision-making, 'Whos at My Door' promises an engaging mix of suspense and strategy, making every knock on the door a moment of tension.