I've been able to download the most recent version of Ravenfield for free on multiple sites. I think you need to check it out
you can always buy the game, test it for a bit and refund it on steam if you don't like it. if you own the game for less than 14 days, and played less than 2 hours they will refund your game. don't pirate it, because that's mad disrespectful to the dev who worked hard on the game.