Here is the full list of all 48 Atelier Sophie 2: The Alchemist of the Mysterious Dream achievements.
Unlocked all achievements.
Conducted an extensive barrel inspection.
Reached the maximum Alchemy Level with both Sophie and Plachta.
Witnessed the end of a dream.
Devised all possible recipes.
Saved Elvira from the Groll.
Defeated Frenzied Elvira on Very Hard difficulty or higher.
Journeyed through Elvira's memories.
Defeated all giant enemies.
Defeated powerful enemies haunted by nightmares in all regions.
Helped Diebold reclaim his oath of knighthood.
Made a promise with Plachta.
Dealt over 99999 in damage with a single attack.
Beheld the withering of the Dream Tree.
Harvested crops grown from every variety of seeds and in every greenhouse environment at least once.
Obtained all catalysts.
Reached the maximum Adventurer Grade.
Learned about Ramizel's newfound dream.
Assisted Kati in helping a child in Roytale.
Learned about Olias's family.
Gave Pirka a pendant to stave off sleepiness.
Marveled at Gnome's artistic skill.
Received a priceless gift from Alette.
Unleashed all Dual Triggers.
Defeated the Zmei.
Reached the maximum Battle Level.
Activated all Assist Skills at least once.
Obtained all weather control tools.
Encountered a shadow from Diebold's past.
Played Major Gathering mini-games with all of the gathering tools.
Raised the Adventurer Grade.
Saw Plachta accept a position of authority.
Found Plachta's soul.
Agreed to help Elvira.
Broke an aura 30 times.
Spent over 100,000 Cole at Pirka's shop.
Defeated one giant enemy.
Created an item with 999 quality.
Met Ramizel.
Learned a Bonus Skill for the first time.
Activated the effects of talismans 15 times.
Changed the weather.
Synthesized an item with Plachta for the first time.
Achieved Super Success more than 10 times.
Played a Major Gathering mini-game using any of the gathering tools.
Devised a new recipe.
Synthesized an item with Sophie for the first time.
Arrived in Erde Wiege.