Metal Gear Solid 5: The Phantom Pain was officially announced by Hideo Kojima during a panel showing off the next-generation Fox engine at GDC.
According to Kojima, the previously announced games The Phantom Pain and Metal Gear Solid: Ground Zeroes both do not exist and are instead Metal Gear Solid 5: The Phantom Pain. Konami has stated this is not entirely true as Metal Gear Solid: Ground Zeroes is a separate game but will be connected to Metal Gear Solid 5: The Phantom Pain.
Konami debuted a new trailer for the game featuring footage previously seen in a trailer for The Phantom Pain along with new scenes that tie together the events of original trailer and the trailer for Metal Gear Solid: Ground Zeroes.
Snake is seen stumbling through a hospital in the game’s debut trailer, as he was in the trailer for The Phantom Pain. Kojima said the hospital portion of the game will serve as a tutorial level at the beginning of Metal Gear Solid 5: The Phantom Pain. Snake will be fully mobile for the rest of the game.
The Phantom Pain was originally announced via a trailer during the 2012 Spike Video Game Awards. The game was immediately rumored to be Metal Gear Solid 5. Metal Gear Solid: Ground Zeroes was announced at a Metal Gear anniversary event in August last year.
The trailer for Metal Gear Solid 5: The Phantom Pain can be viewed below.