The Neighbor could be distracted by throwing items, which would lure him to that location, or by ringing the doorbell or breaking a window. The TVs and radios had the same sound, a fast talking Spanish announcer advertising a bank. Additionally, the Neighbor would place furniture barricades that could be knocked over. One of the rooms had its doors barricaded by a fridge and a table, preventing the player or Neighbor entering normally, though they can smash the window to gain access. The house had two layouts, which affected the placement of items and the accessibility of rooms. The player's own house has a bunch of empty inaccessible rooms, and one room with a bed and an empty hallway containing the front door. The Neighbor's house was blue, and while pretty large on the outside, it only contained one floor, with the stairs to the next floor blocked by a pile of furniture. In it, the player was required to get a crowbar or a hammer, a key or a lockpick, and a four-digit code to unlock the basement, which was an empty room under the stairs. This was the first publically available build.
It contains an ending in which the Neighbor catches the player trying to enter his basement, burying them alive. The unplayable version of Hello Neighbor seen in the announcement trailer.