You are wrong in several fronts: + Linked lists are a thing of the past. + Game engines use complex data structures and algorithms. Some are cutting-edge rese

You are wrong in several fronts: + Linked lists are a thing of the past. + Game engines use complex data structures and algorithms. Some are cutting-edge research implemented from papers, specially in graphics. + A generational index is not complex. Yes, game development (as opposed to game engine development or video/audio rendering) is a mess. That does not mean the actual technical fields involved are simple.