The interactivity and the decision making processes typica lof a video game have a strong influence on how the story of the game should be told, but also on how the imaginary world of the game, where the story takes place, should be structured. As a consequence, there is a growing interest in the development of tools able to couple well with the increasing demanding peculiarities of \u201cgame writing\u201d and\u201cworld building\u201d activities, especially when game or level designers are called to do also the work of a writer. In this paper, we present A.T.L.A.S.(Automatic Terrain and Labels Assembling Software), a tool aimed at the automatic creation of complex imaginary worlds for video games, based on Procedural Content Generation techniques, but characterized also by a story-driven approach
