Konami's Metal Gear Solid V: The Phantom Pain may be done and finished but the spinoff based on The Phantom Pain is still coming... well, it's coming but not as soon as we first thought. The zombie-spinoff Metal Gear Survive has been delayed.
The Polygon article notes that Konami's representative mentioned that the title needed a few more months of polish. So instead of launching at the tail end of 2017 it will be launching in the early first quarter of 2018.
Before, we didn't actually have a solid release date for Metal Gear Survive. It's amazing because the game is being delayed out of a release window we didn't exactly know existed. At least we know now that Konami is targeting an early 2018 release.
The game is based on a light story thread from what happened in Metal Gear Solid V: The Phantom Pain, which follows a group of surviving Diamond Dogs who end up in an alternate dimension where zombie-like beings are roaming around in a desert area.
Metal Gear Survive takes certain elements from The Phantom Pain such as the crafting and resource collecting. Konami has decided to take that concept and evolve it a bit more by using that crafting system to allow players to construct defensive structures, as well as offensive tools such as turrets.
Metal Gear Survive almost takes on a tower-defense type quality as players will have to work together in a cooperative multiplayer environment while fending off waves of zombies.
The concept has received a lot of critical feedback from gamers who felt as if it was a tarnish on the quality of previous Metal Gear games made by Kojima. There's also the stigma that this title is sort of blasphemy against the story-driven nature of the typical Metal Gear games, even the other spinoff that Kojima handed to Platinum Games called Metal Gear Rising: Revengeance.
As far as playability is concerned, a lot of it is still exactly the same as Metal Gear Solid V: The Phantom Pain, and mixes in the mechanics and features from the online multiplayer mode with a more streamlined player-vs-environment setting.
It's hard to tell exactly what sort of monetary structure or payment model that Konami will gun for with the game, but most people are questioning if it's going to be free-to-play or buy-to-own. Given that it's delayed into 2018, and will be competing with other big early 2018 contenders such as God of War, I'm sure Konami will iron out all the other details possibly by the time the Tokyo Game Show rolls around.