In a world where sound holds power, you are an Echo Keeper—a guardian of voices from the past. After a catastrophic event releases vengeful echoes, you must navigate through ruins of a lost civilization, piecing together fragmented memories, solving enigmatic riddles, and battling sinister echoes that threaten to consume the present. Each choice you make shapes the unfolding mystery and changes how the echoes perceive you, leading to multiple endings based on your empathy and cunning. Can you uncover the truth behind the echoes and restore harmony, or will you be silenced forever?