The Sam's Story Add-on for Metro Exodus has 8 achievements worth 200 gamerscore.
Complete the SAM'S STORY chapter earning the Captain's full trust.
Complete the SAM'S STORY chapter.
Complete SAM'S STORY on Normal or higher difficulty without dying in Batwing encounters.
Find all the Night Hunters' secret stashes in the SAM'S STORY chapter.
Collect all harmonica melodies in the SAM'S STORY chapter.
Collect all the upgrades for Sammy rifle and Stallion pistol in the SAM'S STORY chapter.
Set all 5 traps in the SAM'S STORY chapter as the Captain requests.
Organize a documentary screening in the SAM'S STORY chapter.