This document discusses different types of spatial stories and environmental storytelling that can be used in video games. It describes four types of spatial stories: evoked narratives that reference known genres/stories; enacted narratives where players perform or witness story events; embedded narratives where the game space contains narrative information to reconstruct; and emergent narratives that provide resources for player storytelling. The document also discusses debates around whether environmental stories that require reconstructing fixed narratives from game spaces are truly interactive stories.