Horizon Zero Dawn is a 2017 action role-playing game developed by Guerrilla Games and published by Sony Interactive Entertainment. It is the first game in the Horizon series and was released for the PlayStation 4 in 2017 and Windows in 2020. The plot follows Aloy, a young hunter in a world overrun by machines, who sets out to uncover her past. The player uses ranged weapons, a spear, and stealth to combat mechanical creatures.