Here is the full list of all 17 Rumu achievements.
Discover the truth about David and Cecily (Day 7)
Route Power in Every Room
Clean 10 messes
Find MESSR
Read Every Book
Find Sabrina the daughter's bedroom
Finish (Day 2)
Go Against Sabrina's Wishes
Route power successfully
Read a book
Meet Ada the cat
Clean your first mess
Open the game for the first time
Catch Every insect