What does it takes to program a really complex 3D games?

So I am a beginner coder/developer if I success at coding. I wanted to learn how to create complex 3D games like Minecraft, Call of Duty, or other games like AQ3D. So any programs out their is good enough to make these games? I have a coding class at my school and going to school in 1 week. So the title is my question and my second question is What does it needs to create a really complex 3D games?

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