The Design Reasoning Lab primarily considers applications of artificial intelligence (AI) in the game design process. Seen as a pathologically interactive subgenre of software usually deployed with aesthetic intent, videogames present interesting challenges for software engineering and information retrieval. How do we know if the artifact we have crafted matches our difficult-to-define intent or if the space of interactivity for an artifact crafted by another matches our difficult-to-define interests? Many of our projects intend to make the vast possibility spaces implied by a bit of software (such as a videogame or content generation algorithm) into something visible and manipulable.