No missable achievements (plus 18 unknown)
Sign in with Steam or Xbox to track your progress, and:
Defeat Djinn and obtain the Wind Crystal.
Defeat Salamander and obtain the Fire Crystal.
Save up 50,000 gil.
Defeat Kraken and obtain the Water Crystal.
Obtain a summonable creature.
Open 50% of all treasure chests.
Complete 50% of the Bestiary.
Defeat Titan and obtain the Earth Crystal.
Save up 500,000 gil.
Obtain every weapon in Eureka, the Forbidden Land.
Attain level 99 with any job.
Obtain all the summonable creatures.
Defeat the Cloud of Darkness.
Obtain the Ultima Weapon from the Legendary Smith.
Defeat Iron Giant.
Open every treasure chest.
Complete the entire Bestiary.
Attain level 99 with all jobs for all characters.