Here is the full list of all 31 Until I Have You achievements.
Get a 100% Rating in all the stages.
Finish the game.
Unlock all older work orders.
Kill Emily's mirage in all its appearances.
Kill all the enemies, using the LASER.
Kill 100 Enemies using the Gun.
Complete a stage without killing anyone.
Complete a stage in Chapter Eight with the ALARM going off.
Kill 100 Enemies using the Bat.
Kill an enemy while hysteria is high.
Kill all the enemies, using the GUN.
Unlock any of the work orders.
Complete a Boss Stage without using Time-Dilation.
Achieve 100% accuracy with the GUN.
Purchase any of the upgrades.
Kill all the enemies in a stage.
Kill all the enemies, using the BAT.
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.
Achieve the lowest ranking possible.
Die 1000 Times.
Kill all the enemies, using the FLAMETHROWER.
Kill 1000 Enemies.
Beat the game in Hard Mode
Kill 100 Enemies using the Laser.
Kill 100 Enemies using the Flamethrower.
Finish Boss Mode in Normal Difficulty.
Finish Boss Mode in Hardcore Difficulty.