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