This zip contains the source as it was discovered, including debug binaries for console builds. As it is, it does not build, so it remains to be seen how far along the PC port was at this point since the game did not release on PC until June, which is months after the date of these artifacts.

Seemingly someone did try to get the project building as there is a VS 2015 upgrade file present. I assume it was during this process the VC projects get royally messed up or these artifacts are from a dirty source control backup.