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