You know you will have to play this game at some point. You will have to confront all of these moments, and many more. But not yet. Instead, you find the bespectacled man wearing a narrow-brimmed straw fedora and a close-cut red beard. This is Ryan Green. Hold out your hand and share a sad smile, a silent acknowledgment of what you both know—what Green himself didn’t know when he started working on That Dragon, Cancer, what he didn’t know the first time he brought it here to PAX. You know how the game ends. You know that Joel dies.