Here is the full list of all 19 Amanda the Adventurer achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
...and a new friend?
Walk it off
Played another song
A touchy subject
Played peekaboo with Gret-chan
Meet a disappointing end
Meet the sunrise
Together forever
Can't believe I didn't get any presents...
Found Goggles
Meat a tragic end
Learned about the weather
Found the scissors
Waste not want not
Meet a violent end
Wound the clocks
Played a song
Baked a pie
Tried to bake a peach pie