Space impostor sounds grew out of the popularity of Among Us, the online social deduction game released in 2018 by Innersloth and widely shared during its viral surge in 2020. Players act as crewmates completing tasks while hidden impostors sabotage and eliminate them, which created a shared language of calling behaviour sus and calling emergency meetings. Short audio clips linked to that tension spread across meme pages, streams and soundboards, and this version remains popular because the impostor reveal still works as a quick joke about trust, blame and betrayal.