Would it be possible to make a plane bend according to the size sphere
you choose.THe sphere could be any size you choose and the plane would bend to the surface curvature of that sphere you choose.I would like to make planets without generating all the areas of the planet because that would be to much memory.It would generate areas of the planet and places i am going to and the stuff on them as well buildings enemies,plants whatever.It would do all this by emptys.I would like to have driveable vehicles on it as well.But i know how to do that already.I want to have is so that gravity would just be above
the bent plane and not the edges.And the result would be you would fall off the edge whither your driving a vehicle or walking.But the bent planes will be big enough so that wont happen.You would be able to jump with your car or character about fourty feet and come straight back down oriented to the surface of the plane.I dont know python completely so i need some help.I think it would make nice add on to blender if we could get it working and get it working with ray cast detour. 
Better hunt down torkusama, he’s working on a similar thing.
My advice:
- Go away and learn python, and then spend the next year figuring out how to do this. torkusama has been working on this one for the better part of 4 years now.
- Look at “point of gravity” scripts
- Generating anything in real-time is hard. Are you sure you can’t use somthing like “suicidor city generator” from out of game, and then use it in-game?