Ok so as it is, people without unreal engine installed won’t be able to play. In order to let anyone play you need to package your project:
You can choose more than just windows thats just an example. Then you select where you want to put your packaged project. I like to put it in a completely different place than my uproject files but thats just me, you can have it wherever you want. Then you use that folder (I would zip it up to save some space) and upload that to your game page.