Hello,
So I have an old mac and when I tried to install KSP 1.73 onto it, it said that I needed OSX 10.8. I recently upgraded that mac to OX 10.8 and tried installing and now it says that I need OSX 10.9. I went and downloaded KSP 1.6, which is an older version that undoubtedly ran on OSX 10.8, but when I install it, it ALSO says that I need OSX 10.9.
How is this possible? What can be done so that I can install and play an older version of KSP???