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.
Have Esmeralda arrested.
Get the good ending.
Don't kill anybody.
Get the so-so ending.
Knock down and eat a coconut.
Finish the game.
Get the bad ending.
Kill everyone.
Complete Mabel's storyline.
Have tea bags dumped on you.
Complete the nurse's storyline.
Complete Mr. Brown's storyline.
Complete Katharine's storyline.
Save all of Katharine's cat.
Commit two acts of theft.
Clean up all the dog poop.