Honestly the game is a pretty nice game to play. Personally I like the stagger, build up of zombies depending on kill speed, and the story seems like it can go places further into the update process. 

My personal criticisms: are the sex scenes, and interactions with other characters, and the area exploration (this seems to be what came in v0.4 was a nice touch I believe in you and your abilities to make everything as best as you can), and lastly for a dead shot his aim is worst than the female cop at the beginning of the game.

My thoughts on what can be added to make it better if possible:  personally (again) the story can advance through several days, character interaction possibly add more depending on if you choose favor or coercion, the sex scenes are kinda too tight together a way to make it better would probably space the characters a bit and add different camera angles and more characters. Also i would definitely think making more characters that can help temp and perm can overall increase the rating. Last i hope there will be a way to make the chief pay for what he has done. 

good luck, have fun creating this, and take your time😃