Systems for communication across multiple game applications are provided. In various embodiments, systems of the present invention may include a first application server hosting a first game application, a second application server hosting a second game application that is different from the first game application, a first client device for interaction with the first game application, a second client device for interaction with the second game application, and a universe management server for maintaining information about the first client device and the second client device. The information maintained in the universe management server may include game application interaction information, which allows the universe management server to facilitate real-time communication between a user of the first client device and a user of the second client device. The universe management system may further receive communications from both client devices via the first and second application server.