Some days ago Steam made a new feature that let you ask for refund if you bough a pile of shit like Ark.
So I did ask for a refund and after like 2 days or so, I got my refund in my email.
I'm surprise that this feature is even working for me. Look like I won't have problems with games that I was force to try.
Also remember, you have 14 days to ask for refund and you should not have play more than 2 hours. But in my case with Ark, it took me 3 hours to figure out it was a piece of shit and Valve or steam gave me the refund anyway.