In 'Whose Echo is This?', players enter a bizarre and whimsical world where echoes are sentient beings that reflect the thoughts, memories, and emotions of their creator. As a new Echo Engineer in the quirky town of Reverberation Valley, you must navigate a complex web of relationships and mysteries, solving riddles given by mischievous echoes to uncover the truth about the town's haunting past. The game involves interactive dialogue choices that shape the story, unique echo creation mechanics, and opportunities to learn the personal stories tied to each echo. The ultimate goal? To protect the town from an impending echo collapse while confronting the hidden echoes of your own past.