Yes I did download it from this site.

Hi, thanks for your reply. It is indeed connected and I can download and play other games through Steam. The problem occurs with both standalone and Steam version (although Steam one behaves a bit different - it seems to be unable to finish downloading - stuck at 99%). I've tried clear the downloads...

When trying to run factorio on Mac Pro 2019 with macOS 11.1. (Big Sur), I'm getting error: "“factorio.app” can’t be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information.". I cannot bypass the Apple Gateke...