Ok, first off what was described here is impossible and would cost I don't know how much, and is impossible, for one if you are making a game with bunch of premade art and sounds and mechanics then there is only so many games you can make, second off, every single thing in game takes a ton of time to create from textures to models to mechanics to animations to f-king everything, that wouldn't even be the hardest part except for every f-king time someone opens a mouth you need voice actors, you need music, you need specially recorded sounds to fit everything, just everything here would cost millions, not to mention licensing this to different platforms, marketing this to people, putting in years of work for when something like this would come out graphics would already look dated and you would need another version, not to mention possibilities would need to be so f-king broad it would just be easier using game engine as most people do these days if we don't count the people that program game engines and games from scratch for them to be better optimized, because as we all know if you use a game engine, everything will run slower and will take up a lot more space and require more powerful hardware, then there is the small problem of this requiring probably billions to be created, look at most advanced games today, they took years to make and cost hundreds of millions what you are describing here would.. the costs would be astronomical, not mention no real game creators would never use such a travesty because it would cost too much, would be too limited and would get old and sh-tty faster than you could say "Bankruptcy", this is idea is insane and everything about is insane or impossible, there about 1000000 reasons why this could never work, take f-king Minecraft, it is closes thing you are describing here, ever wonder why whole game is made up of voxels? Because if you would try to do the same thing with high end graphics nobody would be able to play or make anything because nobody could runt the damn game/program, maybe if you had room full of servers to handle something that looks even remotely like real life as rendering one frame from modern day blockbusters takes hours, there are so many reason why this could never work, you would need a server farm and an advanced AI or something, either that or go on Kickstarter and ask people for a billion. This is not a new idea, it's about couple of decades old, probably more, if anything you were talking about here was easy we would have done it long time ago, this is literally what every programmer and game designer every dreams of and it is impossible.