Plot: Set in 1930s Paris, an orphan who lives in the walls of a train station is wrapped up in a mystery involving his late father and an automaton.

Unity 3 is an integrated authoring tool for creating 3D video games or other interactive content such as architectural visualizations or real-time 3D animations. Unity is similar to Director, Blender game engine, Virtools or Torque Game Builder in the sense that an integrated graphical environment is the primary method of development.