Here is the full list of all 29 Cats and the Other Lives achievements.
Unlock all Memories
Sleep for the first time
Eat for the first time
Unlock every other Achievement
Complete the First Chapter
Complete the Second Chapter
Complete the Third Chapter
Kill the Mouse
Spare the Mouse
Visit the kids for the last time
Successfully attack the Alpha Crow
Complete the game
Obtain the Aaru Tablet
Obtain the Aaru Deed
Locate Bernard’s Lighter in the Trophy Room
Fool Will for two times
Locate and deliver all the gifts to the children
Save Liam
Destroy the Madame Leonora Flyer
Escape from the Animal Control Vehicle
Make Dawn listen to Bernard’s Tape
Make Shannon confess about Thomas
Learn about Murray’s past
Scratch objects for 20 times
Follow Lorrie to the end of the dark corridor
Scare 8 crows
Unlock 5 Memories
Pat the water puddle 3 times
Harass the Mortician 2 times