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