Something happened and I’m not sure what. My game was working just fine and I tried to open it again later and my game is potentially gone? All my files have been replaced by these. What are they? And can I recover my game? Please help
There’s nothing strange about those files - they’re all created/used by Unity. However, your screenshot crops off the important piece of information of what folder you’re looking in, since that’s not the default listing for a project directory.
Just reload the Unity application and launch your project from the recently-used projects list.