It looks like we can expect Metal Gear Solid V: Ground Zeroes to hit the PC on December 18, according to multiple Russian sources who attended their local video game exhibition, IgorMir.
We know that both Metal Gear Solid V: Ground Zeroes and Metal Gear Solid V: The Phantom Pain are coming to PC, with series creator Hideo Kojima officially announcing the Steam versions of the game just a couple of months ago. Ground Zeroes is a prologue to the full deal: The Phantom Pain, and is already out on the PS3, PS4, Xbox 360 and Xbox One.
Metal Gear Solid V: The Phantom Pain is due out on the aforementioned platforms, and PC, in 2015.