Here is the full list of all 25 The Cat Lady achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Choose your words carefully in Chapter 5.
Unlock the secret "golden ending".
Kill The Eye of Adam yourself in Chapter 7.
Buy time for Jesse in Chapter 6.
Hold tight to your gas mask in Chapter 7.
Don't give up on the foggy orchard in Chapter 4.
Stay away from Gladys' cleaver in Chapter 4.
Keep your cool throughout Chapter 3.
Let Mitzi kill The Eye of Adam in Chapter 7.
Stand up to Bryan in Chapter 3.
Prevent Mitzi from killing The Eye of Adam in Chapter 7.
Solve Crow's riddle in Chapter 2.
Use the mace to kill Doctor X in Chapter 2.
Give up your gas mask in Chapter 7.
Use the spear to kill Doctor X in Chapter 2.
Disregard the Queen of Maggots in Chapter 1.
Complete the final chapter.
Complete the sixth chapter.
Complete the fifth chapter.
Complete the fourth chapter.
Complete the third chapter.
Answer Liz's questions correctly in Chapter 2.
Complete the second chapter.
Complete the first chapter.
Trust the Queen of Maggots in Chapter 1.