Storygraphia: The Constrained Tool for IDN Authoring Education.

This paper presents the authoring tool Storygraphia, for interactive digital narratives. The editor is a graph-based editor that works with a story graph, augmented with metadata for tagging and agents. The authoring tool is oriented to the didactics of interactive storytelling and the major novelty is the implementation of classic constraints for the story engines, namely Propp functions, precondition-effect for story units, tension value.