I fully agree with Ladysharky, watch out!
Not only the downloads here don't work, but the author has a CK installation launcher for download on his webpage and literally promises "Download our launcher and play Act 1 for free, no login required." and when you download it and install, it won't allow you to play anything unless you log in with your Patreon.
I was actually thinking about becoming a patron, but I hate liars/scammers. So the author won't see any money from me, not on Patreon and definitely not on Steam.