The first commercial game I ever designed was built on a custom made 3d render. All sorts of things you do in harware now had to be done in code and you could

The first commercial game I ever designed was built on a custom made 3d render. All sorts of things you do in harware now had to be done in code and you could seriously push like 1k triangles at 20 fps. And that was really good! It took the smartest programmers I have ever known to get that to work on a 486. Now you have Unity, Unreal and hardware acceleration.