Healthcare technologies are often considered a solution for better and more efficient dementia care; however, these technologies are frequently abandoned over time. Improving user acceptance is vital to increasing the use of healthcare technology by care professionals, but achieving this attitude change is a complex challenge. Learning Communities provide a form of organized collaboration that can help to accelerate innovation by involving stakeholders from multiple disciplines such as care practice, education, and research. Co-design methods have shown promise for multi-stakeholder involvement, helping them make sense of complexity and leading to new proposals and ideas. This paper showcases how co-design activities in an existing Learning Community were employed to address challenges surrounding the technology acceptance of care professionals in dementia care. Over three sessions, twenty Learning Community members were guided into designing three serious games to discuss, share, and reflect on technology use in dementia care practice. This paper describes the co-design process, demonstrating promise for using co-design activities to create solutions for shared challenges and using gamification to create attitude change in context.