Full list of all 35 Final Fantasy XIII achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox 360.
Strode into danger's den and paid the consequences.
Resolved to be more than a victim of circumstance.
Carried the burden of guilt to the end of the line.
Took the fight to the enemy's door.
Recognized the true threat to the world's future.
Mastered the Saboteur role.
Mastered the Synergist role.
Earned a 5-star rating for all Cie'th Stone missions.
Felled a heavyweight of the lowerworld wilds.
Held every weapon and accessory.
Completed all Cie'th Stone missions.
Triumphed over undying lowerworld souls in seven fierce battles.
Completed all high-level Cie'th Stone missions.
Toppled a green terror and cut an oversized succulent down to size.
Completed all mid-level Cie'th Stone missions.
Passed Titan's trials.
Fully developed all characters.
Took over 10,000 steps on the lowerworld surface.
Dealt 100,000+ damage with a single attack.
Discovered buried treasure with a little help from a chocobo.
Mastered the Sentinel role.
Mastered the Medic role.
Mastered the Ravager role.
Mastered the Commando role.
Witnessed the dawn of a new crystal legend.
Earned a 5-star rating in the battle to determine the world's fate.
Defied destiny's charge and embarked on a different path.
Completed all low-level Cie'th Stone missions.
Traveled to the world below, seeking a way to alter fate.
Discerned the full attributes of 100 enemies.
Made plans to infiltrate enemy-occupied territory.
Evaded pursuers, though memories of the past still gave chase.
Slipped through the net and lived to fight another day.
Survived the Purge to confront a greater peril.
Took the first steps toward challenging an unjust fate.