7 Days To Die is an open-world, sandbox zombie game, that is much more H1Z1 than it is State of Decay.
First and foremost, it's startling that a game can look this awful in 2016. I mean, it reaffirms the concerns that the Xbox and PlayStation stores are seriously lacking in quality control. This level of crappiness is to be expected in the deep depths of Steam, or all over the App Store, but you don't expect to find it on consoles.
And yet, Telltale Games actually published this series. I'm not sure what Telltale saw in 7 Days To Die that made the developer want to publish the game. But is an ugly, glitchy mess that no-one should waste their time on.