Full list of all 12 Lovely Planet achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Found the Dagger with the Pearl Inlay (Forest)
Unlocked All Stars (Forest)
Found the Graves (Village)
Found the Hungry Samurai (Village)
Unlocked All Stars (Village)
Visited the Shrine of Lovely Planet
Unlocked All Stars (City)
Unlock All Stars (Swamp)
Unlock All Stars (Mountain)
Collect All Gun Colors
Find All Hidden Secrets
Drink the Sake (Swamp)