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