I play a lot of video games and some items/buildings/plants/vehicles (even entire villages/cities) look great. What if I had the money (and technology) to create the real deal? Would that be perfectly legal or do I need the permission from the copyright holder?
Internet searches haven't been fruitful. There are tons of examples where it's prohibited to create new art from old art or "base on a true story", but what about "reality based on fiction"?