What’s the first thing someone sees when they start your game? What does the first interaction with the controls feel like? How does the scope of the game open up within the first hour — how does it demonstrate its depth to the player? When does the game start to get boring — why would I keep playing once I’ve learned the basics? Can I imagine someone playing my game for fifty hours? What would it take to help them get there — what is the value going to be for them?