Thank you so much, those images were exactly what I needed to see to help me.Copied from the page.
Patch Instructions
extract the lewd-vxx.zip file in the /game folder
It's like with any other Renpy game. Drop all files included with the patch into that folder (waterworld-0.20.0-pc/game/) or whatever you called the preceding folder and overwrite if and when asked.
The attached files show what my /game folder looks like and where it is relative to the game's root folder.