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