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.
Unleashed all Dual Triggers.
Conducted an extensive barrel inspection.
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.
Dealt over 99999 in damage with a single attack.
Harvested crops grown from every variety of seeds and in every greenhouse environment at least once.
Defeated all giant enemies.
Helped Diebold reclaim his oath of knighthood.
Made a promise with Plachta.
Defeated powerful enemies haunted by nightmares in all regions.
Beheld the withering of the Dream Tree.
Obtained all catalysts.
Assisted Kati in helping a child in Roytale.
Reached the maximum Battle Level.
Learned about Olias's family.
Received a priceless gift from Alette.
Learned about Ramizel's newfound dream.
Reached the maximum Adventurer Grade.
Marveled at Gnome's artistic skill.
Gave Pirka a pendant to stave off sleepiness.
Defeated the Zmei.
Obtained all weather control tools.
Activated all Assist Skills at least once.
Activated the effects of talismans 15 times.
Encountered a shadow from Diebold's past.
Played Major Gathering mini-games with all of the gathering tools.
Spent over 100,000 Cole at Pirka's shop.
Raised the Adventurer Grade.
Saw Plachta accept a position of authority.
Found Plachta's soul.
Agreed to help Elvira.
Broke an aura 30 times.
Defeated one giant enemy.
Created an item with 999 quality.
Met Ramizel.
Learned a Bonus Skill for the first time.
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.