Lethal Company is a cooperative horror game released in 2023, where players collect scrap on abandoned moons and return to their ship to survive. The ship door is a central part of that loop, opening for departures and closing to protect the crew, so its sound became instantly recognisable to players and viewers. As clips, streams and edits of the game spread across YouTube and TikTok, the door sound was reused as shorthand for starting a run, escaping danger or returning to safety. It remains popular because it instantly signals the game without any dialogue or explanation.