3. Then you should have a back story that would hold a middle school level students' attention, appropriate for use in a middle school classroom (e.g., the base station's oxygen supply has been damaged).
4. You should connect this main player goal and objective (e.g., fixing the oxygen supply) by learning about the big idea and science behind it.
5. Then the components of the scientist's journey as an immersive story that will eventually be designed in the game.