I downloaded the zip file...... what's the worst that can happen?
Oh, then I apologize for my reaction. If you just looked at the files with Winrar then you're probably fine. I recommend updating Winrar somewhat regularly since there could be vulnerabilities in outdated versions.
If you want to be extra safe, scan your system with an antivirus you trust. You should do that anyway if you play adult games that you got off the internet.