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