Here is the full list of all 16 Greyfox RPG achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Get the so-so ending.
Get the good ending.
Don't kill anybody.
Finish the game.
Complete Katharine's storyline.
Get the bad ending.
Kill everyone.
Have Esmeralda arrested.
Save all of Katharine's cat.
Complete the nurse's storyline.
Complete Mabel's storyline.
Have tea bags dumped on you.
Complete Mr. Brown's storyline.
Knock down and eat a coconut.
Clean up all the dog poop.
Commit two acts of theft.