Sony's upcoming PS4 zombie game Days Gone has been delayed. Having originally been scheduled for this year, the survival game will now launch in 2019. "We can confirm that Days Gone will now be releasing in 2019 and we will keep you updated on the launch date," Sony told GameSpot. The company did not mention why the game has been delayed.

Sony Worldwide Studio president Shuhei Yoshida had previously stated the game would launch at some point in 2018, though it was not clear--and still isn't--at what point in the year that would be. Not much of the game has been shown off so far; audiences have simply seen a glimpse of the same section played during the day and at night.

Days Gone was first announced at E3 2016. It's in development at the Sony-owned Bend Studio, which previously made Uncharted: Golden Abyss on PS Vita and the Syphon Filter series. We still don't know exactly when it will launch, but we did recently learn when we'll get to play another PS4 exclusive; Detroit: Become Human's release date has been confirmed as May 25.

In other PS4 news, there's a new system update out now and March's PS Plus games are now available. They include Bloodborne and Ratchet & Clank--check out the full PS Plus lineup for March here.