Vanished places you in a world without light, with no memory of how you got there or why the world is the way it is. But don't worry: Where you're going, you won't need eyes to see. The game uses your iOS device's accelerometer, compass and touchscreen for its interactions – you shake the device to attack, while movement is handled by turning the device to face the direction you want to walk and tapping the screen.
"We think that imagination is the most powerful hardware a game needs," Pixel Heart's website reads. "The game itself is only part of the experience. It's your imagination that creates the world in witch [sic] you play." Pixel Heart also labels the game as an "experiment" for now, one they hope to make bigger and more complex.
Experiment or no, you can download Vanished from iTunes for free until October 1 as part of its launch sale, after which it will sell for $0.99.