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