Here is the full list of all 37 THIEF achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Shot a bottle in mid-air with an arrow
Finished the game with a custom difficulty of 700 points or more
Finished the game without a single kill or knockout
Finished the game on Master difficulty
Reached the final chapter without using the focus ability
Finished 3 consecutive chapters without taking damage
Finished a single chapter without alerting anyone
Finished Chapter Eight
Finished the game in 15 hours or more
Completed a collectible set
Finished Chapter Seven
Picked 100 pockets in a single playthrough
Completed 10 optional Thieving Objectives
Completed all Basso Jobs in The City
Finished Chapter Six
Finished Chapter Five
Disarmed ten trap mechanisms
Finished Chapter Four
Picked a pocket and a lock using the focus ability
Finished Chapter Three
Discovered 15 secret areas
Killed or knocked out 10 people using the environment
Finished Chapter Two
Picked a lock with masterful speed
Stole 5 collectibles
Sweet sixteen. Snuff said.
Finished Chapter One
Uncovered Lyegrove's secret
Finished the Prologue
Steal all loot and collectibles in a single chapter.
Complete 25 optional Thieving Objectives
Score an epic 5,000,000 or more in a Challenge Map
Complete all collectible sets
Discover all secret areas
Use 40,000 gold
Complete all Client Jobs in The City
Find all the secret stashes in Moira