Metal Gear Solid: Ground Zeroes (メタルギアソリッドグラウンドゼロ) is a stealth action video game developed by Kojima Productions and produced by Konami. The ninth entry in the Metal Gear series, Ground Zeroes is the first to have an open world gameplay structure. Director Hideo Kojima confirmed that Naked Snake will return as the game's protagonist in a story that will serve as a prologue to Metal Gear Solid 5.
The game was announced at a private function celebrating the twenty-fifth anniversary of the Metal Gear series, and made its public debut two days later at the Pax Prime 2012. It is the first game to utilise the Fox engine developed by Kojima Productions.