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