What is the use of arrays in making games

Question

Especially in 3D games

Answer 1

If you look close, array is just list of elements but as you thought a group of array can make 3d with for loop

Answer 2

I think the question should be like this:
"Is there any game where array is not used?"
I think there is no game where array is not used array is the basic concept of every programming .It can contain list of element .If you need a practical example then I think you can see this question:
https://www.quora.com/Can-some-give-an-example-of-the-use-of-an-array-in-a-video-game