Here is the full list of all 31 Until I Have You achievements.
Kill 100 Enemies using the Flamethrower.
Kill all the enemies, using the FLAMETHROWER.
Finish the game.
Kill 100 Enemies using the Laser.
Kill Emily's mirage in all its appearances.
Achieve 100% accuracy with the GUN.
Complete a stage in Chapter Eight with the ALARM going off.
Kill 100 Enemies using the Bat.
Kill 100 Enemies using the Gun.
Achieve the lowest ranking possible.
Kill an enemy while hysteria is high.
Kill all the enemies, using the LASER.
Unlock any of the work orders.
Complete a Boss Stage without using Time-Dilation.
Purchase any of the upgrades.
Kill all the enemies, using the GUN.
Kill all the enemies in a stage.
Kill all the enemies, using the BAT.
Complete a stage without killing anyone.
Complete a level earning the Second To None Rank.
Get a 100% Rating in any stage.
Head out of the apartment.
Watch TV.
Complete Tutorial.
Die 1000 Times.
Get a 100% Rating in all the stages.
Kill 1000 Enemies.
Beat the game in Hard Mode
Unlock all older work orders.
Finish Boss Mode in Normal Difficulty.
Finish Boss Mode in Hardcore Difficulty.