I have played many hours on this quite entertaining game. I wanted to point out some facts from the perspective of a survivalist.
There is very little that can be applied to an actual zombie apocalypse. You can't use plants to hurl things. Corn and butter or even watermelons have a zero effect on zombies. Plants simply do not grow that fast. There are pretty much no weapons in this game that could even slow down a zombie even briefly.
The only thing that could possibly be considered useful would be fortifying your home and staying where it is safe.
Overall I found this to be a very fun game. Even after finishing it, I still played it more. I rate this game 4 of 5 stars for fun and 1 of 5 stars for practical advice. Have fun!