Here is the full list of all 49 WORLD OF FINAL FANTASY achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Obtained every achievement.
Reached the true ending.
Recorded every last Mirage in the Mirage Manual.
Defeated every last opponent in the Coliseum.
Completed every last intervention battle.
Defeated the Cogna known as XG.
Fulfilled the requests of every last townsperson in need.
Added Tamamohimé to your roster.
Defeated the Undead Princess 10 times.
Reached the final chamber of the Nether Nebula in record time.
Found the secret area in every dungeon.
Opened every last treasure chest.
Defeated many foes using any Magitek armor.
Mastered 100 Mirage Boards.
Defeated the Princess Goblin with the Warrior of Light.
Cleared the sky of uncountable einhänders.
Defeated every last murkrift Mirage.
Braved and completed the new dungeons that appeared.
Chastised the fugitive Ifreeta.
Joined forces with Shivalry to defeat the Golden Flan.
Brought all seven of the Pleiad back in line.
Reached an ending.
Opened 100 treasure chests.
Recorded an inconceivable number of Mirages in the Mirage Manual.
Thwacked a whole bunch of cactuars in a single thrashing.
Defeated Ultros in Tometown.
Completed 30 intervention battles.
Learned the location of Castle Exnine.
Teamed up with Gilgamesh to stop the Bahamutian soldier.
Obtained every last Champion Medal.
Found all of the keys from the Crimson Prophecy.
Defeated the Quacho Queen with one of Lann’s attacks.
Completed 10 intervention battles.
Battled 500 times.
Recorded a huge number of Mirages in the Mirage Manual.
Found the first key from the Crimson Prophecy.
Got to the bottom of the “phenomenon” at the Coliseum.
Defeated 30 teams at the Coliseum.
Recorded a large number of Mirages in the Mirage Manual.
Battled 100 times.
Won your first Coliseum battle.
Mastered your first Mirage Board.
Obtained your first Champion Medal.
Completed your first intervention battle.
Fulfilled a townsperson’s request for the first time.
Repelled the Bahamutian Army.
Defeated your first murkrift Mirage.
Imprismed your first Mirage.
Arrived in Grymoire.