We propose MARGE, a game which incorporates multiplayer, pervasive gaming elements into mobile content sharing. MARGE allows users to annotate real world locations with multimedia content, and concurrently, provide opportunities for play through creating and engaging interactive game elements, earning currency, and socializing. A study of MARGE was conducted. The results suggest the potential of the application in terms of entertainment and content sharing value. Participants felt that the features in MARGE were able to support the objectives of content sharing and gaming, and that the idea of gaming could be a motivator for content sharing. Implications and future research directions are discussed.