While 3D space has become almost ubiquitous in computer games that apply narrative techniques, theoretical frameworks and practical experiments about the use of virtual space are underdeveloped compared to the number of works that deal with literary textual pieces such as MUDs. Offering one element to fill this gap, the notion of a Story Map is introduced in this paper. The interactor's experience of space and of the events in a Real-Time 3-Dimensional Virtual Environment (RT 3D VE) form a constant discourse and Story Maps are seen as a form of the interactor's comprehension of this discourse. The Common Tales research project exemplifies the development of this theory before the value of the Story Map for MMORPG's will be outlined.