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 bad ending.
Kill everyone.
Have Esmeralda arrested.
Knock down and eat a coconut.
Finish the game.
Get the good ending.
Don't kill anybody.
Complete the nurse's storyline.
Complete Mabel's storyline.
Have tea bags dumped on you.
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.