The know how to make a game is free knowledge with paid education add-ons... we figured out the broad strokes. Smaller tech leaps in client-side game software

The know how to make a game is free knowledge with paid education add-ons... we figured out the broad strokes. Smaller tech leaps in client-side game software is difficult to protect from instant duplicaton. The cloud and mobile is the 'last moat'. Are we going to move into black box software designs and trusted platform modules in hardware to enforce a technology moat for devs on pc's?