It says that there are only initial paths in the game descriptions right now. This to to show what options are planned and there is a spot on furaffinity for people to suggest what paths should be worked on first.
If you have any suggestions for what paths you want to see first, leave a comment. As it says in the last sentence before the walkthrough explaination "There isn't much here yet, just a proof of concept and initial paths. Feedback on what paths should be pursued first are welcome".