Hello ShirtyKezRat,
There is no native support for Visual Studio 2013 in our binary versions of the engine as of 4.10. If you wish to use 2013, you’ll need to download the source build from Github as you considered doing. The engine is not editable from the binary version meaning that even if the Visual Studio project was switched to 2013, you’d be unable to compile it from the files that binary provides. Please let me know if you have any issues doing so with source code and I’ll be happy to help.