Full list of all 91 Sleep Stream achievements.
The base game contains 79 achievements, and there are 2 DLC packs containing 12 achievements.
Activate synergy for the first time
Clear without fully activating any synergies
Clear with 40 or less Max HP
Clear with 13 or more Elite kills
Check at least one additional option and clear
Check at least 3 additional options and clear
Clear with Mad Scientist
Clear difficulty 5 with Mad Scientist
Achieve Mad Scientist Mastery Level 6
Clear with Ice Princess
Clear difficulty 5 with Ice Princess
Achieve Ice Princess Mastery Level 6