Modified version of Unreal Engine 4

  1. It means someone has obtained the UE4 source code and made changes specific to their needs
  2. Which source has been modified will be specified by the modifier – they obtain a specific version of UE4 to change
  3. Those who modified it are the only ones who can explain how, but in some way they changed the source
  4. Same as 3: the why is up to the modifier, but they did it because UE4 didn’t provide what they needed out-of-the-box
  5. Yes you can, but you shouldn’t unless you absolutely must

Check out this link (Unreal Engine on GitHub - Unreal Engine) and if all goes as it should, you can have the UE4 source code in a matter of minutes. If you ever want to do client/server development, you will need to use the engine source anyway, so it’s good to have access. You won’t need to make changes per se, it’s just that building a server requires the source code.

Just be warned that you are opening Pandora’s box. :wink:

GL!