To answer OP's question, to download isos from many links, you need a downloader manager program. You COULD download links one by one as another user stated, but that is tiring. These programs exist so you copy and paste the links, go to bed, and maybe when you wake up in the morning your game will be downloaded depending on your connection.
is a free download manager program I used way back when (but avoid because requires Java). For some reason, their official website download link goes to a adware-riddled installer. It is very odd. Use this link below for the clean
is a free download manager that specifies it is for downloading from file sharing sites. Does not require Java. It is very simple in comparison to JDownloader but lacks many complex features JDownloader has. When you install, make sure you READ where you're clicking and DECLINE any additional program downloads.