(C#) Gravity Field generated in a collider

Hi, I am working on a space sim game and I am trying to get a gravity field generator to work.

Here is the requirements I am trying to work to:

• Gravity field is generated within an area (So using a collider)

• Have the field be independant of world rotation (so basically not use Unity's inbuilt gravity)

• has to work on flat objects as its basically going to be a single direction for a specific object and its contents (Eg a ship's crew)

I have been working for days on this problem and looking everywhere for help. I know the basic understanding of several ways to do it but everything I seem to try doesn't work so I thought I'd ask a specific question to see if I can get a result from it.

Im looking for only C# and if possible not use Rigidbodies but its not mandatory.

Thank you for your time and I hope I can get this working because its driving me insane.

(I dont have any code right now that is in a workable fasion to post, which is why I am asking here to see if anyone either has a way to do it or can help me make it myself. Please dont just say the understanding of it because I know that, its code help I'm looking for not understanding)