Fernando Trinta , University of Fortaleza Davi Pedrosa , Federal University of Pernambuco Carlos Ferraz , Federal University of Pernambuco Geber Ramalho , Federal University of Pernambuco Abstract: Crossmedia games are a genre of pervasive gaming where a single game instance can be played with a variety of heterogeneous devices that support di erent forms of players' participation and deliver di erent game experiences. In this paper, we present the PM2G initiative, a Service-Oriented Architecture aiming at supporting crossmedia games' development and execution. Due to their relevance in this document, Content Adaptation and Interaction Adaptation Services are detailed. We also present a case study, a game called Pervasive Wizards, which is used to validate our architecture. Finally, we also present some performance results obtained in our experiments. ACM Copyright Notice Copyright © by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of p...