Hello Neighbor: The Secret Neighbor Party Game is a social deduction game for 510 players aged 8 and up, inspired by the popular video game series. Players assume the roles of neighborhood kids attempting to find keys to unlock a basement door, while some among them are secretly Neighbors in disguise. The game unfolds over trading and action phases, where players exchange object cards and use their powers to gather information or deceive others. The goal for the kids is to unlock the basement by using keys, whereas the Neighbors aim to mislead the group and gain their trust to use a key themselves, resulting in a win for the Neighbors. This gameplay promotes critical thinking, social interaction, and strategic planning, making it both entertaining and educational. With no player elimination and a 30-minute playtime, it ensures continuous engagement for all participants.