This shows Great potential. currently a little barren for content beyond your first completion, but i would love to see this continue development. 

a few suggestions.

-multiplayer (if possible)

-new weapons

-inventory and equipment. makes managing larger settlements more challenging.

-endless mode with saving.

-larger worlds

-more resources and buildings

again, only suggestions. and i will be happily watching as this develops :)

just saw you have a more recent update that is paid for. will be getting that right away and editing my review after