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