The Dead Money Add-on for Fallout: New Vegas has 5 achievements.
Achievements they've won
Achievements they've not won
Confront Father Elijah in the Sierra Madre's Vault.
Trap Father Elijah in the Sierra Madre's Vault.
Complete the Sierra Madre Gala Event.
Recruit Dean Domino, Christine and Dog.
Collect 500 Sierra Madre Chips.