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