Here is the full list of all 33 Double achievements.
Do not help Louis in the shootout
Complete the game without upgrades
Answer wrong all questions about dreams
Explore all things at the hospital
Open all letters in dreams
Answer right all questions about dreams
Answer right all questions about dreams in day 1
Get bad ending
Kill 15 enemies using focus
Uncover Lucia's lies
Kill 30 enemies by shooting from cover
Hide pills 5 times
Кill 40 enemies with dash
Die of glitch
Kill 15 frozen enemies
Get good ending
Complete day 9
Complete day 8
Skip 10 dialogs
Don't uncover Lucia's lies
Complete day 7
Complete day 6
Complete day 5
Take 4 pills
Kill 15 without aiming
Kill an enemy with a dash while having a minimum of lucidness
Die from waiting
Complete day 4
30 headshots
Complete day 3
Trust Louis
Complete day 2
Complete day 1