Out of curiosity I spent the last few days developing / coding an automated pipeline for extracting, converting, re-texturing / re-rigging / re-everything, and importing Star Wars Galaxies into Unity, and it works 100% "as-is", although it would take a few months to truly modernize everything as a lot of what they did back then was rather basic and incomplete. For example the AT-AT's legs where not modeled to ever move, and I won't even go into the feet of the AT-AT, they truly didn't model it to be anything more than a prop. :P
Thing is, now that I have appeased my curiosity, to see if I could do it, that's as far as I go without written permission from the owner "I'm guessing Disney".
Did you get permission from the owner to re-master X-Wing in Unity, to forklift it into another gaming engine?
If so, who would I talk to to get the same permission?
We have no permission at all from Disney to do what we are doing since we don't think what we are doing requires any particular permission.
We aren't breaking the EULA by modding the original game. We aren't modifying the original game file structure (XWVM resides in a different folder), we aren't removing or adding copyright notices, we aren't fooling the user into believing that we are associated with Disney or that we are Disney.
We aren't reusing the models to make any kind of "total conversion" in a third party's game, driving sales for that game.
We aren't redistributing copyrighted assets (the user needs to bring the game assest).
We aren't pursuing any commercial end to this game, neither getting any economical reward from it.
We aren't even putting our names on it (the original credits and logos will not be modified).
The only thing we are doing is providing an executable to the user that he or she can use along with their licensed copy of X-wing to run the missions and play the audios contained in the resource files. Basically, we are modding the game so that our executable runs the game instead of the original executable. We aren't even modifying their executable or incurring in reverse engineering on compiled code.
Finally, nobody can keep us from making XWVM available for download. It contains no copyrighted materials. The name isn't trademarked even. It's useless by itself, but it incurs in no legal offenses.
So, no. We don't have permission. :)