Here is the full list of all 39 Atelier Shallie: Alchemists of the Dusk Sea DX achievements.
Reached alchemy level 99. Now you're a full fledged alchemist!
Completed objectives of chapter 9.
Emerged victorious over the king of dragonkin.
Participated in the Confection Fair.
Saw Miruca and Jurie working together.
Saw the place where Linca was born.
Completed objectives of chapter 8.
Enjoyed the Water Festival.
Defeated the master of the Ghost Ship.
Encountered the alchemist Keithgriff.
Contracted with the spirit ruling the Dusk Sea.
Encouraged Master Wilbell.
Completed objectives of chapter 7.
Saw Raoul's moment of utter defeat.
Made amends with Shallie.
Completed objectives of chapter 6.
Completed objectives of chapter 5.
Slayed the Huge Dragon that was threatening Stellard.
Completed objectives of chapter 4.
Completed objectives of chapter 3.
Completed objectives of chapter 2.
Completed objectives of chapter 1.
Chose Shallistera's story.
All Achievements obtained.
Chose Shallotte's story.
Saw Shallistera's story through to the end.
Saw Shallotte's story through to the end.
Started a 2nd playthrough.
Saved from a predicament by Wilbell.
Encountered Harry and Gerard having a chat.
Found out that Nady is gravely ill.
Assigned to Stellard as new officials.
Found a solution for the drought, and returned to Lugion.
Decided to run an atelier in Stellard with Stera and Miruca.
Set off on a new adventure, for Nady's medicine.
Decided to face the Dusk together with Shallie.
Reached combat level 99. You're just getting started!
Acknowledged by the king of beasts ruling the underground.
Stopped the being controlling the water source.