There is an interesting distinction between agency and the illusion of agency. On one hand, games want the player to have as much agency as possible -- control and interactivity is one of the reasons why games are compelling. On the other hand, there may be value in creating the illusion of agency in order for an intelligent system to force particular outcomes or effects. If illusion of agency is created without the player becoming aware, then the player derive enjoyment from perceived agency, and the system will achieve it's goal of enhancing the player's experience. The classic example is interactive storytelling where the intelligent system coerces the world such that particular dramatic, pedagogical, narratological effects are achieved while the player is free to act as he or she pleases. Why is this important? It may be that if the player has true agency, then he or she will make decisions that seem rational but actually detract from their own enjoyment.