Here is the full list of all 53 Atelier Escha & Logy: Alchemists of the Dusk Sky DX achievements.
All Achievements acquired.
Fulfilled an important promise.
Decided to work with Linca and Marion in the development team.
Helped Lucille save people on the frontier.
Went on a search for treasure with Reyfer and Harry.
Helped Threia with her research.
Journeyed to the Ends of the Earth with Awin.
Saw the complete men's association.
Completed Logy's story.
Stopped Flameu after she released her true power.
Reached combat level 99. Are there any worthy foes left?
Encountered Solle and Colland's awkward meal.
Encountered Katla and Harry's fateful meeting.
Learned Logy was greatly injured in a past accident.
Started Logy's story.
Saw the complete girl's association.
Escha saw Logy off with a smile.
Completed Escha's story.
Destroyed the giant device used by a girl.
Saved the girl's soul bound to Geosis.
Saw the "Ends of the Earth" with Awin.
Challenged the king of dragons, and proved humanity's worth.
Fell victim to a classic ruins trap with Reyfer.
Saw an unexpected side of Threia and Marion.
Witnessed Micie's elegant shopping.
Defeated the giant alchemic creature in the Unexplored Ruins, and found the ruin's secret.
Read a difficult reference book with Lucille.
Watched Linca's reunion.
Participated in Duke's eating contest.
Reached alchemy level 50. You're now an expert!
Cleared and reported 9th term assignment.
Completed a true airship.
Cleared and reported 8th term assignment.
Gathered lithograph fragments, and discovered an ancient legend.
Cleared and reported 7th term assignment.
Built a basic airship.
Cleared and reported 6th term assignment.
Logy retook his dreams with Escha's support.
Cleared and reported 5th term assignment.
Destroyed the Slag guarding the ruins interior.
Harvested apples with Nio and Clone.
Watched Duke and Colland's manly struggle.
Planned for the future with the development team.
Cleared and reported 4th term assignment.
Eliminated the behemoth living at the water spring.
Witnessed the twilight survival instinct of Escha.
Cleared and reported 3rd term assignment.
Acquired a worn down air balloon. You became an alchemist of the sky…maybe.
Cleared and reported 2nd term assignment.
Cleared and reported 1st term assignment.
Found out that Wilbell is a real magician.
Escha and Logy's new life begins.
Started Escha's story.