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