Abstract
Pondering digital games, in general, and discussing details such as, e.g., innovations of NPC behavior and AI, of interface technologies, of serious games application areas, and the like requires a language of scientific discourse. Contributions to a taxonomy of digital games and of digital game playing are essential preliminaries to a digital games science. There is introduced a canonical taxonomy of digital games which is later on extended toward a comprehensive taxonomy of digital games. Practical work shows the usefulness of the approach whereby emphasis is put on serious games development and applications.