This release includes 3 .rar files. Two of them are demos in Ren'Py (for Windows and Linux), and the file WorldNavigator-v1.0.0.rar contains all the necessary files to integrate into a Ren'Py project. Simply extract everything into your project's game folder. It also includes an example.json, which serves as a template for creating your own world. If you have any further questions, refer to the README and the Ren'Py-specific README.
If any issues arise, please create an issue here.