Full list of all 83 STRANGER OF PARADISE FINAL FANTASY ORIGIN achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Completed the additional mission: "Ebon Memories: Hope Within Despair."
Gave an elixir to a magic pot.
Completed over thirty rift labyrinth floors.
Maxed out your affinity with the Tonberry Blacksmith.
Received an accessory from Gilgamesh.
Acquired all achievements.
Completed every side mission.
Completed the additional mission "Distant Memories: Supreme Illusions."
Defeated Jack Garland.
Defeated Light of Order.
Defeated From Hell Risen.
Used replication at the blacksmith for the first time.
Acquired Garland's armor.
Defeated the Transcendent.
Used dimension bringer.
Defeated a manikin.
Completed the additional mission: "Chaos Rift - Battle on the Big Bridge."
Used a job crest at the smithy.
Obtained a relic with blessings from 12 different summons.
Maxed out your affinity with the discarded organic reconnaissance unit.
Defeated a death machine in the rift labyrinth.
Encountered a chaos event.
Unlocked every panel in the marksman job tree.
Unlocked the blue mage.
Summoned your first monster.
Completed a floor of the rift labyrinth.
Unlocked the entirety of the evocation or ultima tree for any job.
Completed the mission "Cornelia's Hope."
Unlocked the class tree.
Unlocked the summoner.
Acquired a rat tail.
Talked to Bahamut via Conversations with Bahamut.
Completed a mission with a dragon king trial enabled.
Fully upgraded the special effect of a piece of equipment.
Completed the mission "Light of Possibility."
Achieved MASTER★★★★ rank for a job.
Completed a level 200 mission or higher on CHAOS difficulty.
Completed the game on CHAOS difficulty.
Acquired an anima crystal.
Used a master point.
Acquired an artifact.
Unlocked all jobs.
Unlocked the cyclic warrior.
Completed "A Fraught Journey."
Completed "The Suffering of Fools."
Unlocked every job affinity bonus for a single job.
Completed "Remembering Home."
Completed "Schemes of the Past."
Unlocked the gambler.
Unlocked the hunter.
Unlocked the tyrant.
Unlocked the ninja.
Unlocked the paladin.
Unlocked the liberator.
Unlocked the void knight.
Completed "Memories of Water."
Unlocked the assassin.
Completed "To Remember."
Equipped a staff.
Completed "Memories of Earth."
Completed "Phantoms of the Past."
Unlocked the dark knight.
Equipped a gun.
Equipped a ★4 or better accessory.
Completed "Memories of Fire."
Unlocked the sage.
Completed "Memories of Poison."
Unlocked the evoker.
Used a weapon ability for the first time.
Unlocked every panel in the job tree for a single job.
Completed "Memories of Wind."
Defeated a cactuar.
Completed "A Familiar Place."
Completed "Natural Distortion."
Unlocked the breaker.
Completed "Audience with the Dark Elf."
Completed "The Journey Begins."
Unlocked an advanced job.
Completed a side mission.
Completed "Illusion at Journey's End."
Defeated a tonberry.
Acquired an anima shard.
Used soul burst for the first time.