This is just a very rough basic game skeleton. Companies believing AI is smart enough to spit out almost ready product will learn a hard way that it will will give them just a starting point that still needs a lot of work. This is a nature of all modern LLMs - they easily lose context: the bigger the context the more losses and distortions are, especially in the middle. So, giving AI the complete book does not mean it will follow everything in it - quite the contrary.