Full list of all 46 Hitman: Absolution achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
You found your way through the mines
You achieved Silent Assassin
You played a contract made by a friend
You left Lenny in the desert
You circumvented Lenny's crew and secured Lenny
You escaped the attention of an enemy
You re-gained your signature Silverballers
You participated in a contract competition
You questioned the bartender
You assassinated Wade
You completed 10 challenges
You assassinated Wade's men in Chinatown
You bought an upgrade for a weapon
You liked a contract
You created a contract competition
You completed the Creating Contracts Tutorial
You completed the Contract Basics Tutorial
You made a kill look like an accident
You successfully performed a lethal throw
You boarded the train and escaped the Chicago PD
You executed a point shooting with at least 3 kills
You located the hotel room number 899
You contained a situation gone bad
You subdued a person
You unlocked a technique
You remained undetected throughout a checkpoint
You fulfilled Birdie's contract and eliminated The King of Chinatown
You hid a body
You blended in and fooled someone
You infiltrated the mansion and assassinated Diana Burnwood
Complete 100 challenges
Complete 50 challenges
47 precision headshots using a sniper rifle
Assassinate facility leaders
Defeat Sanchez with your bare hands
Eliminate the Saints
Gain access to the jail
Approach the church
Acquire suit & gloves
Assassinate Layla
Assassinate Blake Dexter
Assassinate Travis
Complete Hitman: Absolution™ on any professional difficulty
Collect all play styles
Collect all evidence
Earn 1 million contract dollars