Full list of all 57 Final Fantasy XI achievements worth 1,250 gamerscore. It takes around 1000 hours to unlock all of the achievements in the base game.
The base game contains 32 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 25 achievements worth 250 Gamerscore.
Achieved level 75 as a warrior.
Achieved level 75 as a monk.
Achieved level 75 as a white mage.
Achieved level 75 as a black mage.
Achieved level 75 as a red mage.
Achieved level 75 as a thief.
Achieved level 75 as a paladin.
Achieved level 75 as a dark knight.
Achieved level 75 as a beastmaster.
Achieved level 75 as a bard.
Achieved level 75 as a ranger.
Achieved level 75 as a samurai.
Achieved level 75 as a ninja.
Achieved level 75 as a dragoon.
Achieved level 75 as a summoner.
Achieved level 75 as a blue mage.
Achieved level 75 as a corsair.
Achieved level 75 as a puppetmaster.
Achieved 100 in a synthesis skill or fishing.
Achieved rank 10 in San d'Oria.
Achieved rank 10 in Bastok.
Achieved rank 10 in Windurst.
Completed the Zilart missions.
Completed the Promathia missions.
Completed the Aht Urhgan missions.
Achieved the highest mercenary rank.
Earned the title "Breaker of the Chains."
Earned the title "Gold Ballistar."
Earned the title "Dynamis-Xarcabard Interloper."
Earned the title "Dynamis-Tavnazia Interloper."
Earned the title "Temenos Liberator."
Earned the title "Apollyon Ravager."
Earned the title "Horizon Breaker."
Earned the title "Summit Breaker."
Earned the title "Sky Breaker."
Earned the title "Cloud Breaker."
Earned the title "Star Breaker."
Earned the title "Destined Fellow."
Achieved level 75 as a dancer.
Achieved level 75 as a scholar.
Completed one or more artifact quests.
Became a guild member.
Completed the Wings of the Goddess missions.
Completed the past Vana'diel three nation quests.
Obtained the key item "Medal of Altana."
Obtained the key item "chocobo license."
Obtained the key item "airship pass."
Obtained the key item "airship pass for Kazham."
Obtained the key item "boarding permit."
Obtained the key item "Imperial Army I.D. tag."
Obtained the key item "Ballista License."
Obtained the key item "pure white feather."
Unlocked the support job ability.
Unlocked one or more extra jobs.
Obtained an official soul reflector.
Obtained a VCS registration card.
Obtained a chocobo whistle.