Do what I do. Download the renpy app itself. Drop the PC version into the GAME folder in Renpy. Launch FROM Renpy. Works most of the time.
Thanks, I’ll try. Does it work for RPGM too?
Running it from within Ren'Py SDK is a good method, provided you use the same version of the SDK as the one the PC version was made with. You can check this by consulting the text file Script_version.txt which should be found in the game folder.
While you're at it, you can then choose the option to build a complete Mac version yourself. If there is an update patch later on, like it is the case here, you can then just download the patch and use it to update the Mac version you already have. (right click the app, show package contents, navigate to /Contents/Resourses/autorun/game and add the patch files to the game folder)
For RPGM MV it works similar, except that the www folder from the pc version is called app.nw in the Mac app.
As a general precaution, make a duplicate of the app first before you start messing with the contents.