An American tourist is lured to a British game development studio to test a new augmented-reality horror game that engages directly with each player’s brain via a biorobotic implant. The AI program mines the character’s darkest fears and manifests them into the real-world as photorealistic graphics. Inevitably, terror and mental breakdown follow. The idea of a video game that can analyze a player’s personality and change accordingly may seem like the stuff of outlandish sci-fi, but it isn’t. This could well be where game design is heading.