Here is the full list of all 30 Dragon Sinker: Descendants of Legend achievements worth 1,000 gamerscore.
Won 10 rounds against Enah in battle.
Cleared all the subquests.
Got all 16 jobs (except animal characters).
Earned "World Domination" ending.
Earned "Days Filled with Love" ending.
Earned "World Peace" ending.
Defeated Deitus.
Defeated the Archdemon General.
Defeated the Human Hero.
Met the legendary heroes to undergo a new trial.
Dealt 99999 damage with 1 attack.
Used all scrolls on 1 main character.
Mastered all jobs.
Earned "A Season of Peace" ending.
Clarke joined the party.
Won a super owl playing the lottery.
Won a super gorilla playing the lottery.
Won a regular owl playing the lottery.
Won a regular gorilla playing the lottery.
Won a super cat playing the lottery.
Won a regular cat playing the lottery.
Broke out of Gelph Prison.
Swapped teams 50 times.
Gathered the 3 legendary weapons.
Obtained a ship.
Changed jobs 10 times.
Mastered one job.
Dealt 5000 damage with one attack.
Gathered the 3 main chracters.
Watched the opening.