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.
Devised all possible recipes.
Unleashed all Dual Triggers.
Dealt over 99999 in damage with a single attack.
Defeated all giant enemies.
Defeated powerful enemies haunted by nightmares in all regions.
Harvested crops grown from every variety of seeds and in every greenhouse environment at least once.
Conducted an extensive barrel inspection.
Obtained all catalysts.
Witnessed the end of a dream.
Saved Elvira from the Groll.
Defeated Frenzied Elvira on Very Hard difficulty or higher.
Journeyed through Elvira's memories.
Made a promise with Plachta.
Helped Diebold reclaim his oath of knighthood.
Reached the maximum Adventurer Grade.
Reached the maximum Battle Level.
Created an item with 999 quality.
Beheld the withering of the Dream Tree.
Assisted Kati in helping a child in Roytale.
Learned about Ramizel's newfound dream.
Received a priceless gift from Alette.
Marveled at Gnome's artistic skill.
Gave Pirka a pendant to stave off sleepiness.
Learned about Olias's family.
Defeated the Zmei.
Activated all Assist Skills at least once.
Obtained all weather control tools.
Spent over 100,000 Cole at Pirka's shop.
Encountered a shadow from Diebold's past.
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.
Activated the effects of talismans 15 times.
Broke an aura 30 times.
Agreed to help Elvira.
Met Ramizel.
Learned a Bonus Skill for the first time.
Defeated one giant enemy.
Changed the weather.
Achieved Super Success more than 10 times.
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.