Start Unity and make sure you're on the correct version (5.6.3p1). Make sure you extract ALL content from the RavenfieldToolsPack.zip file. After all software has been installed, download and extract the RavenfieldToolsPack.zip to somewhere on your computer (for example C:/UnityProjects/RavenfieldToolsPack'). With Unity installed, you can now optionally install Blender.
If you are on Mac, make sure you check the Windows Build Tools. Start by downloading and installing Unity.
