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