A lot of the soundtrack is like that yeah, very unnerving and jarring. Effective for the mood they are trying to set.

The effect is called panning IIRC. It just uses the same systems all soundtracks and games use for directionality. Using one headphone more than the other, and adding a slight delay to one ear. Gives a sense of directionality and things moving (if you have your headphones or speakers set up to take advantage of it)

The one you linked is really interesting, its like a mix of diablo's tristram track meets tubular bells (the classic exorcist segment of it) before shifting to classic rpg battle theme that is slightly disjointed.

A lot of the soundtrack is like that yeah, very unnerving and jarring. Effective for the mood they are trying to set.

The effect is called panning IIRC

The one you linked is really interesting, its like a mix of diablo's tristram track meets tubular bells (the classic exorcist segment of it) before shifting to classic rpg battle theme that is slightly disjointed.