The starting hypothesis of our research project the idea that games fall under the scope of social ontology – the branch of ontology that studies the nature of the social world and the various entities, relationships, and phenomena of which it is composed. It may seem obvious that games have an important social dimension, as they are typically played collectively and embedded within complex social practices involving various roles, norms, conventions, and institutions. Despite its intuitive appeal, the view that games are social entities in their own right has rarely been explored in the literature. We intend to develop this perspective and to investigate its consequences regarding the nature, mode of existence, and fundamental properties of games.