Hello!<p>iPhone X has a "TrueDepth" front-facing camera system that powers FaceID. It can also be accessed in limited ways through the ARKit framework. I used the facial tracking API (used for animojis) to create a game that is controlled by the player's eyebrows. The app is available for free on the App Store.<p>The gameplay is simple: eyebrows up -> character jumps up, eyebrows down, character jumps down. I posted a video demo here: <a href="https://www.youtube.com/watch?v=9k_9BKA3w_Q" rel="nofollow">https://www.youtube.com/watch?v=9k_9BKA3w_Q</a><p>Some tech details: The app is 100% Swift, the game is built using SpriteKit, and all design was done in Sketch.<p>Would love to answer any questions about the game, discuss the ARKit API's, or talk about the privacy / accessibility implications of the technology.