Sylvio is an indie-developed first-person horror adventure video game released on Steam in June 2015 for Microsoft Windows, PlayStation 4, Xbox One and, OS X, utilizing the Unity engine. The game is about an audio recordist called Juliette Waters, who records the voices of ghosts through Electronic voice phenomenon. She finds herself trapped in an old family park, shut down since a landslide in 1971, and she now needs to use her recorder to survive the night.