This alert comes from Among Us, the multiplayer social deduction game by Innersloth that surged in popularity in 2020. In the game, a reactor sabotage forces players to respond quickly or lose, so the sound became strongly tied to panic, time pressure and teamwork under stress. As Among Us clips spread across YouTube, TikTok and meme edits, the reactor alarm stuck around as a reusable cue for any escalating situation, even outside the game. It is often grouped with other dramatic gaming warning sounds like Shocked sound.