COtopia is a multiplayer strategy game designed to make community engagement more fun, intuitive, and inclusive. It emphasizes interaction among participants and encourages reflection on how individual decisions shape the community as a whole. Each player takes on a role within the community, with distinct abilities, responsibilities, and goals. Through discussion, collaboration, and strategic competition, players must collectively allocate limited resources, guide community development, respond to events, and work toward their objectives. COtopia is adaptable and site-specific: designers can create custom versions of the game with tailored maps, roles, and rules, and use it to facilitate engagement sessions either online or on site.