Successful installation no problem.
A double click on the launcher gives "Error when launching the application." (view picture 1).

I'm using Linux Mint which doesn't support 32 bits anymore, just like Ubuntu and Mac, so this information is important, and can't be found! (but view picture 2 for windows).
https://www.gog.com/game/machiavillain
https://www.pcgamingwiki.com/wiki/MachiaVillain

The MachiaVillain folder does not contain a "start.sh" file ! (Loading in SingleInstance mode with: view picture 3).
This makes an error report not feasible for a support request.
~/GOG Games/MachiaVillain$ ./start.sh --sysrep
~/GOG Games/MachiaVillain$ bash ./start.sh
bash: ./start.sh: Aucun fichier ou dossier de ce type translation bash: ./start.sh: file open failed: No such file or directory
Is the problem in the construction of the installer ?

If an owner of MachiaVillain can confirm me when the problem is solved, thank you in advance.
GOG we need staff who knows Linux, please.

I contacted the developers 26/12/2020, Thank you for their next intervention ;)
In the absence of a response, I intend to request a refund.
http://www.wildfactor.net/