I saw the game Brain it on-Phyziks puzzles it is 2D, I want the same only 3D, what technologies do I need to know for this?

Question

Unity

I saw the game Brain it on-Phyziks puzzles it is 2D, I want the same only 3D, what technologies do I need to know for this?
Brain it on is a bit like Happy Glass, in Brain there are balls instead of water, let 3D have balls.

Answer 1

C#, Unity you need to know