There are a lot of us that are working on space games and would love to have 64-bit coordinates. We’ve been waiting for UE5 to see if it would be implemented. I didn’t make the assumption that UE5 would have double precision coordinates, that’s why I’m asking and would like to find out from the UE5 devs. We are aware that the coordinate system is still FP32.
There are some indie game devs that were able to create their own version of 64-bit coordinates in their games, such as Galaxia or Satellite Command, so this is possible.