Shabda
Shabda is an early prototype of a upcoming game that relies completely on spatial 3d(binaural) sound for navigation.
There is a difference between 3d audio and spatial(binaural audio). Binaural audio uses special sounds to trick your brain to position sounds in 3d space as if they were real. With that, you can actually understand how close, far, up or down something is in relation to your head.
A first prototype demo is also available with a simple demonstration of game mechanics.
In order to run and play it with spatial sound, you need to enable HRTF in your sound system. Please note that without HRTF enabled, it will be close to impossible to play Shabda, as the sounds will just be regular stereo.