Full list of all 25 Planet of Lana achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Discovered a secret shrine
All Secret Shrines Discovered
Sneaking past the chef
Surviving the invasion
Rescuing Mui
Finding a way in
Finding the amulet
A mystical discovery
Finding the bracelet
Together to the end
Making it past the robot army
Freeing Mui
Pet Mui for the first time
Completing the game
Game completed without dying
All achievements completed