This Venn diagram, by Alke Martens and his colleagues, is helping me refine my game idea. The game takes place in an interactive environment that is specifically directed. Players have some choices, but they are limited. The purpose of the game is to provide instructional opportunities in math based on a player’s current abilities. So the game has to be a bit scripted, making it a simulation. Unlike a pure simulation, there will be game play and mechanics involved. So the combination of pedagogy, game play, and activities directly related to those in the real world, my game idea sits in the middle of this Venn diagram.