Ok so download Joiplay from google at Joiplay.cyou. you also need Zarchiver download from Play Store. Download Lewd Falls the PC/windows version. Open Zarchiver and go to downloads, then click the 3 dots at the top right corner. Click Create Folder (you can name the folder whatever you want). Click the download file ( Lewd Falls ) and click "extract to...". Then click on the new folder you just made and click the blue button on the bottom right corner, and wait for it to extract. Now you open Joiplay and after allowing the permissions, you will see a "+" on the top left corner and then click the following (add game, choose, download, Lewd falls or whatever you named the folder.) CLICK GAME.EXE and then Next next next and done.
I hope it helps if you need help for a specific part just tell me.😎