Journey, a Shared Virtual Space MiddlewareThe complexity of developing multiplayer games, along with their popularity, has grown tremendously in the recent years. The most complex of these, Massively Multiplayer Games (MMOGs), require developers to deal with many issues, such as scalability, reliability and cheat prevention. In this work, we present Journey, a unified framework that addresses all these issues in a simple, modular and efficient architecture leveraging replicated objects.