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