Secret Neighbor: Hello Neighbor Multiplayer brings a hidden-traitor setup to the Hello Neighbor house. Players cooperate to find keys and unlock the basement, where their friend is trapped, but one member of the group is secretly the Neighbor. That split identity makes trust part of the objective: the team needs to work together without knowing whether a companion is actually helping.
The intruders can stay together or divide their search, while using perks and abilities to remove the locks from the basement door. The disguised Neighbor plays a different game, relying on a convincing disguise, traps and suspicion to hinder the others and conceal their identity. Rather than separating cooperation and competition into unrelated activities, Secret Neighbor puts both sides in the same group and makes deception the pressure point of the rescue.
The game also offers a Level Editor for building custom mazes and inviting friends to play, alongside its official maps.