The Mudborne OST contains the original soundtrack for the game, a collection of dreamy electronic ambient music spanning 2 discs, created by ellraiser.

The first disc contains the waking world tracks played in-game (plus the bonus 'credits' song), and the the second disc contains the dream world counterparts played while you traverse the dreaming world.

This is an optional DLC for Mudborne, for those who want to have the soundtrack in a high quality format, or just want to support the developer.