The HITMAN Add-on for HITMAN 3 has 13 achievements worth 195 gamerscore.
All achievements
Achievements they've won
Achievements they've not won
Reach Sapienza Mastery Level 20.
Complete The Showstopper.
Complete World of Tomorrow.
Complete Situs Inversus.
Complete Club 27.
Complete A Gilded Cage.
Reach Bangkok Mastery Level 20.
Reach Paris Mastery Level 20.
Reach Hokkaido Mastery Level 20.
Complete Freedom Fighters.
Reach Marrakesh Mastery Level 20.
Reach Colorado Mastery Level 20.
Complete Suit Only and Silent Assassin Challenges on The Icon, A House Built on Sand or Landslide.