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