In 'Whose Echo Is This?', players take on the role of a sound engineer named Leo, who has just landed the job of a lifetime at a mysteriously decaying amphitheater. Upon arrival, Leo discovers that the theater is haunted by the echoes of the voices of its last performers - voices that are intertwined with dark secrets. Players must explore the crumbling venue, manipulate sound waves, and uncover the truth behind the theater's sinister past through engaging dialogues and challenging puzzles. The echoes serve as both clues and red herrings as Leo interacts with the ghostly inhabitants, revealing their hidden stories and unraveling a twisted narrative.