The main focus of the Gamesys Foundation is to preserve and protect the wellbeing of individuals suffering from mental health issues. They provide grants and funding to organisations who care for these individuals directly, as well as those who focus on research in the mental health field.
Mental health is a broad term which can encompass a vast variety of ailments, treatments, and experiences.
Applications are open to UK-based organisation with a minimum annual income
Application form is on their website