Hello! We're so sorry to hear about your troubles with this... We know of several issues surrounding newer Macs even past the quarantining issue. We're assuming yours is, at least, relatively new?
We've recently paid for an Apple developer ID and are waiting on them to approve this prologue for their system, which should solve a lot of issues. We'll be sure to let you know when we re-upload that build here. (Hopefully, the launch of the full game will be a lot smoother thanks to that as well!)
Finally, thank you so much for your patience and support all these years! We'll do our best!