Religions hold complex relations with games and, in particular, with gambling. The article focuses on Christianity. On the one hand, the history of this religion shows a tendency to condemn games as source of distraction from spiritual rectitude and to stigmatize gambling, above all, as opening to metaphysical randomness and, as a consequence, as challenge to the idea of divine omniscience. On the other hand, Christianity has also sought to reinterpret games, and even gambling, as possible occasion for moral improvement and as useful distraction from the hardship of monastic life. A theological perspective that reaches its peak in Thomas Aquinas, but has its roots in Aristotle’s evaluation of playfulness, tends to suggest the need for eutropelia, meant as the citizens’ virtue to appropriately have fun
