I would say it depends heavily on the game. On the other hand we got games with "do this 20 times, there isn't any variation on the images / actions" and then there is games where you feel like you are progressing.
The grinding without any meaning is like bad sandbox without any content: click...
Depending heavily on the game and how the actual story is (yes, plot can be more than just boobs):
-RenPy works on most cases (sandbox without any content is another pit)
-RPGM can be tedious with running around map for 10 minutes to see one scene and then back gain. (and those filler battles)...
A lot of games played, supported many ( perhaps too many ). Seen quite many dropped without any reason so nowdays mostly once a while insteat of monthly subsciption.