"We realised we had the opportunity to create what we call ‘the ultimate first-person game,’” he told Ars. “The illusion provided from successful binaural audio is closer to immersive reality than anything a screen can provide. That is, when it truly works, you’re actually there, getting a closer approximation to the information you’d get from a real space. So some people really find the game incredibly, unplayably, scary."

Scared of the dark: a look at the audio game Papa Sangre. A first-person game that has no video—you play it solely through audio.