But long before Unity ... a 3D world you can walk around in! The first thing we’re going to do now is create some floor. Doing this is fairly simple, we just go to GameObject > 3DObject > Plane ...

For a long time, the world of 3D engines — especially for game developers — was all about Unity and Epic’s Unreal ... there’s now an improved Terrain system that can scale up to 16x16km ...