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 created a contract competition
You liked a contract
You played a contract made by a friend
You completed the Contract Basics Tutorial
You completed the Creating Contracts Tutorial
You eliminated Travis and fulfilled Diana's contract
You assassinated Blake Dexter
You assassinated Dexter's assistant, Layla
You visited Tommy the Tailor and acquired a new suit and gloves
You caught up with Skurky
You bought an upgrade for a weapon
You infiltrated the courthouse and accessed the jail
You eliminated the Saints
You achieved Silent Assassin
You have defeated Sanchez with your bare hands
You assassinated the facility leaders
You found your way through the mines
You left Lenny in the desert
You circumvented Lenny's crew and secured Lenny
You re-gained your signature Silverballers
You questioned the bartender
You executed a point shooting with at least 3 kills
You assassinated Wade
You escaped the attention of an enemy
You assassinated Wade's men in Chinatown
You boarded the train and escaped the Chicago PD
You made a kill look like an accident
You subdued a person
You located the hotel room number 899
You remained undetected throughout a checkpoint
You hid a body
You unlocked a technique
You fulfilled Birdie's contract and eliminated The King of Chinatown
You contained a situation gone bad
You successfully performed a lethal throw
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
Complete 10 challenges
Complete Hitman: Absolution™ on any professional difficulty
Collect all play styles
Collect all evidence
Earn 1 million contract dollars
Participate in a contract competition