The NPD numbers have shown that the Sony PlayStation 4 has top the US sales charts yet again. Yet, overall console sales are down. Will the rumored PlayStation 4k, new Xbox One, and the upcoming Nintendo NX help or hinder the console sales worldwide? The PlayStation 4 (PS4) is a home video game console developed by Sony Interactive Entertainment, formerly Sony Computer Entertainment. Announced as the successor to the PlayStation 3 during a press conference on February 20, 2013, it was launched on November 15, 2013 in North America, and November 29, 2013 in Europe, South America and Australia, and February 22, 2014 in Japan. It competes with Nintendo’s Wii U and Microsoft’s Xbox One, as part of the eighth generation of video game consoles.