Playstation 4 was developed in a country.
PlayStation 4 ( PS4 ) is a line of home video game consoles developed by Sony Interactive Entertainment . Announced as the successor to the PlayStation 3 during a press conference on February 20 , 2013 , it was launched on November 15 in North America , November 29 in Europe , South America and Australia ; and February 22 , 2014 , in Japan .