Invert y-Axis for game development, not for viewport etc

I used the default vehicle project for testing and I came across the problem that the y-Axis is inverted.

Usually, the green arrow (y-Axis) should point to north not to south. So, when I move an object to the right (or east) x is increasing (+). When I move an object to the top (or north) y is decreasing (-). How can I invert the y-Axis that it’s like a normal Cartesian coordinate system?