““the discursivity of games is changed by the capabilities of game engines. The kinds of works, and the nature of these works, have material and functional limitations and capabilities-the unit operations the game engine exposes. These limitations and capabilities influence the kind of discourse the works can create, the ways they create them, and the ways users interact with them. For better or worse, the capabilities of game engines have been limited to visual and physical experience, rather than emotional and interpersonal experience.””