Im looking for a game like Unturned but with non-blocky graphics. I've looked at RUST, Dayz, and Miscreated already but they're way too expensive. PC only and make sure they're under $20
Don't Starve together is one title to consider as it's only $15 which contains 2 copies of the game (one for you & one for a friend) If you want more zombie survivor, Left 4 Dead series is probably the better option as it's $20 / title ($30 for the bundle).
As this isn't a genre that play, my recommendations list is a bit limited in order to fit your requirements.
Answers & Comments
I would personally suggest Killing Floor 2.
Don't Starve together is one title to consider as it's only $15 which contains 2 copies of the game (one for you & one for a friend) If you want more zombie survivor, Left 4 Dead series is probably the better option as it's $20 / title ($30 for the bundle).
As this isn't a genre that play, my recommendations list is a bit limited in order to fit your requirements.