Currently, if you try to run PZ B42.8.1, it will crash after character creation with an Error 1. This is true for both Windows and Mac.

Confirmed on Indie Stone forums: theindiestone DOT com/forums/index.php?/topic/82975-mac-b427-crash-after-character-creation/

I am having to play a PIRATED STEAM COPY BECAUSE THE GOD DAMNED GOG INSTALLER IS BROKEN!

FFS guys... Why even buy GOG games if this kind of thing is going to keep happening?