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 bad ending.
Kill everyone.
Have Esmeralda arrested.
Commit two acts of theft.
Get the so-so ending.
Get the good ending.
Finish the game.
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.
Knock down and eat a coconut.
Clean up all the dog poop.