Here is the full list of all 20 Road Not Taken achievements.
Ate Raccoon Stew
Banned an object
Crafted an angry ghost.
Crafted a fire
Chopped wood
Completed the first mission
Picked up Poop
Earned a silver watch
Rescued 30 children
Rescued 100 children
Married
Cured someone
Earned a gold watch
Completed a career
Completed 3 careers
Never used teleport in an entire career
Play an entire career without stepping on any spirits
Play an entire career without eating meat of any kind
Discovered 100 secrets
Discovered 200 secrets