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 Mr. Brown's storyline.
Complete the nurse'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.
Commit two acts of theft.