Immortal: Unchained Achievements
Full list of all 43 Immortal: Unchained achievements worth 1,650 gamerscore.
The base game contains 31 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 12 achievements worth 650 Gamerscore.
This DLC has been removed from the Microsoft Store and is no longer available for purchase.