Days Gone Steam Key . Will you survive the horrors of a dying world or will your search for a reason to live be in vain? Test your determination in the newest release by SIE Bend Studio and Sony Interactive Entertainment that blends action-adventure with survival genre elements - Days Gone! Step forth into a post-apocalyptic world, forever changed by a global pandemic that turned most of humanity into uncontrollable & violent nocturnal creatures, better known as Freakers.