Here is the full list of all 18 Fran Bow achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Find the picture behind the door
Make the Guard fall asleep
Give the robot rabbit three carrots
Afuga Merzenis
The Itwork computer crashes
Finish Fran Bow
Electrocute the doctor three times
Light the candles
Beat the Troll mini-game!
Return what you stole
Kotrem is no longer divorced
Win against the Snail five times
Beat the Toader mini-game!
Reunite with your best friend
Find the Twin's favorite doll
Burning rope
Cake and sweet craving
Beat the Maze mini-game!