I need to compile an Xcode project on Windows. I don\'t need to make one, because it is automatically generated. I am new to iOS development, and I don\'t plan to submit to the
No, it's not possible (as of now). To build an Xcode project you need an environment, that is just not present on Windows. I mean a lot of libraries, frameworks and tools that are shipped with macOS.
One possible way is to try to find a working macOS VM / install a "Hackintosh", but be warned that both actions are illegal according to macOS ToS.
By the way, you don't need to pay Apple 99$ to install your software on a device. You just need a Mac.