Got the same problem, at first got message that the exe wasn't found in the windows-i686 dir, but it's definitly there (sometimes this gets erased by virus scanner, God knows why ...).
Then if I try to start that exe, it says there is a 'problem' with internet security access or some sort, no detail error message though...
I guess the Dev has build in some 'security' regarding his Patreon version.
If so, I have no problem with that, I respect this Dev's hard work, and you see that his game gets leaked very very fast here.
But then again, this is a Pirate porn games forum/site after all, so ...
Can someone more skilled then me elaborate on this 'issue' please, I'm just curious to know the what and why